21563520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1021}}^1$

素因数の和:1054

約数の個数: 128

約数和(自身を含む): 75055680

約数和(自身を除く): 53492160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 264, 320, 330, 352, 384, 440, 480, 528, 640, 660, 704, 880, 960, 1021, 1056, 1320, 1408, 1760, 1920, 2042, 2112, 2640, 3063, 3520, 4084, 4224, 5105, 5280, 6126, 7040, 8168, 10210, 10560, 11231, 12252, 15315, 16336, 20420, 21120, 22462, 24504, 30630, 32672, 33693, 40840, 44924, 49008, 56155, 61260, 65344, 67386, 81680, 89848, 98016, 112310, 122520, 130688, 134772, 163360, 168465, 179696, 196032, 224620, 245040, 269544, 326720, 336930, 359392, 392064, 449240, 490080, 539088, 653440, 673860, 718784, 898480, 980160, 1078176, 1347720, 1437568, 1796960, 1960320, 2156352, 2695440, 3593920, 4312704, 5390880, 7187840, 10781760, 21563520]

約数ペア:

[(1, 21563520), (2, 10781760), (3, 7187840), (4, 5390880), (5, 4312704), (6, 3593920), (8, 2695440), (10, 2156352), (11, 1960320), (12, 1796960), (15, 1437568), (16, 1347720), (20, 1078176), (22, 980160), (24, 898480), (30, 718784), (32, 673860), (33, 653440), (40, 539088), (44, 490080), (48, 449240), (55, 392064), (60, 359392), (64, 336930), (66, 326720), (80, 269544), (88, 245040), (96, 224620), (110, 196032), (120, 179696), (128, 168465), (132, 163360), (160, 134772), (165, 130688), (176, 122520), (192, 112310), (220, 98016), (240, 89848), (264, 81680), (320, 67386), (330, 65344), (352, 61260), (384, 56155), (440, 49008), (480, 44924), (528, 40840), (640, 33693), (660, 32672), (704, 30630), (880, 24504), (960, 22462), (1021, 21120), (1056, 20420), (1320, 16336), (1408, 15315), (1760, 12252), (1920, 11231), (2042, 10560), (2112, 10210), (2640, 8168), (3063, 7040), (3520, 6126), (4084, 5280), (4224, 5105)]