21167976976

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{409217}}^1$

素因数の和:409339

約数の個数: 40

約数和(自身を含む): 42471917784

約数和(自身を除く): 21303940808

約数列:

[1, 2, 4, 8, 16, 53, 61, 106, 122, 212, 244, 424, 488, 848, 976, 3233, 6466, 12932, 25864, 51728, 409217, 818434, 1636868, 3273736, 6547472, 21688501, 24962237, 43377002, 49924474, 86754004, 99848948, 173508008, 199697896, 347016016, 399395792, 1322998561, 2645997122, 5291994244, 10583988488, 21167976976]

約数ペア:

[(1, 21167976976), (2, 10583988488), (4, 5291994244), (8, 2645997122), (16, 1322998561), (53, 399395792), (61, 347016016), (106, 199697896), (122, 173508008), (212, 99848948), (244, 86754004), (424, 49924474), (488, 43377002), (848, 24962237), (976, 21688501), (3233, 6547472), (6466, 3273736), (12932, 1636868), (25864, 818434), (51728, 409217)]