72888621

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 107775360

約数和(自身を除く): 34886739

約数列:

[1, 3, 13, 39, 53, 159, 179, 197, 537, 591, 689, 2067, 2327, 2561, 6981, 7683, 9487, 10441, 28461, 31323, 35263, 105789, 123331, 135733, 369993, 407199, 458419, 1375257, 1868939, 5606817, 24296207, 72888621]

約数ペア:

[(1, 72888621), (3, 24296207), (13, 5606817), (39, 1868939), (53, 1375257), (159, 458419), (179, 407199), (197, 369993), (537, 135733), (591, 123331), (689, 105789), (2067, 35263), (2327, 31323), (2561, 28461), (6981, 10441), (7683, 9487)]