18757788

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 56689920

約数和(自身を除く): 37932132

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 23, 28, 38, 42, 46, 49, 57, 69, 73, 76, 84, 92, 98, 114, 133, 138, 146, 147, 161, 196, 219, 228, 266, 276, 292, 294, 322, 399, 437, 438, 483, 511, 532, 588, 644, 798, 874, 876, 931, 966, 1022, 1127, 1311, 1387, 1533, 1596, 1679, 1748, 1862, 1932, 2044, 2254, 2622, 2774, 2793, 3059, 3066, 3358, 3381, 3577, 3724, 4161, 4508, 5037, 5244, 5548, 5586, 6118, 6132, 6716, 6762, 7154, 8322, 9177, 9709, 10074, 10731, 11172, 11753, 12236, 13524, 14308, 16644, 18354, 19418, 20148, 21413, 21462, 23506, 29127, 31901, 35259, 36708, 38836, 42826, 42924, 47012, 58254, 63802, 64239, 67963, 70518, 82271, 85652, 95703, 116508, 127604, 128478, 135926, 141036, 164542, 191406, 203889, 223307, 246813, 256956, 271852, 329084, 382812, 407778, 446614, 493626, 669921, 815556, 893228, 987252, 1339842, 1563149, 2679684, 3126298, 4689447, 6252596, 9378894, 18757788]

約数ペア:

[(1, 18757788), (2, 9378894), (3, 6252596), (4, 4689447), (6, 3126298), (7, 2679684), (12, 1563149), (14, 1339842), (19, 987252), (21, 893228), (23, 815556), (28, 669921), (38, 493626), (42, 446614), (46, 407778), (49, 382812), (57, 329084), (69, 271852), (73, 256956), (76, 246813), (84, 223307), (92, 203889), (98, 191406), (114, 164542), (133, 141036), (138, 135926), (146, 128478), (147, 127604), (161, 116508), (196, 95703), (219, 85652), (228, 82271), (266, 70518), (276, 67963), (292, 64239), (294, 63802), (322, 58254), (399, 47012), (437, 42924), (438, 42826), (483, 38836), (511, 36708), (532, 35259), (588, 31901), (644, 29127), (798, 23506), (874, 21462), (876, 21413), (931, 20148), (966, 19418), (1022, 18354), (1127, 16644), (1311, 14308), (1387, 13524), (1533, 12236), (1596, 11753), (1679, 11172), (1748, 10731), (1862, 10074), (1932, 9709), (2044, 9177), (2254, 8322), (2622, 7154), (2774, 6762), (2793, 6716), (3059, 6132), (3066, 6118), (3358, 5586), (3381, 5548), (3577, 5244), (3724, 5037), (4161, 4508)]