21054660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:138

約数の個数: 192

約数和(自身を含む): 71608320

約数和(自身を除く): 50553660

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 23, 30, 33, 38, 44, 46, 55, 57, 60, 66, 69, 73, 76, 92, 95, 110, 114, 115, 132, 138, 146, 165, 190, 209, 219, 220, 228, 230, 253, 276, 285, 292, 330, 345, 365, 380, 418, 437, 438, 460, 506, 570, 627, 660, 690, 730, 759, 803, 836, 874, 876, 1012, 1045, 1095, 1140, 1254, 1265, 1311, 1380, 1387, 1460, 1518, 1606, 1679, 1748, 2090, 2185, 2190, 2409, 2508, 2530, 2622, 2774, 3036, 3135, 3212, 3358, 3795, 4015, 4161, 4180, 4370, 4380, 4807, 4818, 5037, 5060, 5244, 5548, 6270, 6555, 6716, 6935, 7590, 8030, 8322, 8395, 8740, 9614, 9636, 10074, 12045, 12540, 13110, 13870, 14421, 15180, 15257, 16060, 16644, 16790, 18469, 19228, 20148, 20805, 24035, 24090, 25185, 26220, 27740, 28842, 30514, 31901, 33580, 36938, 41610, 45771, 48070, 48180, 50370, 55407, 57684, 61028, 63802, 72105, 73876, 76285, 83220, 91542, 92345, 95703, 96140, 100740, 110814, 127604, 144210, 152570, 159505, 183084, 184690, 191406, 221628, 228855, 277035, 288420, 305140, 319010, 350911, 369380, 382812, 457710, 478515, 554070, 638020, 701822, 915420, 957030, 1052733, 1108140, 1403644, 1754555, 1914060, 2105466, 3509110, 4210932, 5263665, 7018220, 10527330, 21054660]

約数ペア:

[(1, 21054660), (2, 10527330), (3, 7018220), (4, 5263665), (5, 4210932), (6, 3509110), (10, 2105466), (11, 1914060), (12, 1754555), (15, 1403644), (19, 1108140), (20, 1052733), (22, 957030), (23, 915420), (30, 701822), (33, 638020), (38, 554070), (44, 478515), (46, 457710), (55, 382812), (57, 369380), (60, 350911), (66, 319010), (69, 305140), (73, 288420), (76, 277035), (92, 228855), (95, 221628), (110, 191406), (114, 184690), (115, 183084), (132, 159505), (138, 152570), (146, 144210), (165, 127604), (190, 110814), (209, 100740), (219, 96140), (220, 95703), (228, 92345), (230, 91542), (253, 83220), (276, 76285), (285, 73876), (292, 72105), (330, 63802), (345, 61028), (365, 57684), (380, 55407), (418, 50370), (437, 48180), (438, 48070), (460, 45771), (506, 41610), (570, 36938), (627, 33580), (660, 31901), (690, 30514), (730, 28842), (759, 27740), (803, 26220), (836, 25185), (874, 24090), (876, 24035), (1012, 20805), (1045, 20148), (1095, 19228), (1140, 18469), (1254, 16790), (1265, 16644), (1311, 16060), (1380, 15257), (1387, 15180), (1460, 14421), (1518, 13870), (1606, 13110), (1679, 12540), (1748, 12045), (2090, 10074), (2185, 9636), (2190, 9614), (2409, 8740), (2508, 8395), (2530, 8322), (2622, 8030), (2774, 7590), (3036, 6935), (3135, 6716), (3212, 6555), (3358, 6270), (3795, 5548), (4015, 5244), (4161, 5060), (4180, 5037), (4370, 4818), (4380, 4807)]