21662888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{577}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 46245780

約数和(自身を除く): 24582892

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 361, 494, 577, 722, 988, 1154, 1444, 1976, 2308, 2888, 4616, 4693, 7501, 9386, 10963, 15002, 18772, 21926, 30004, 37544, 43852, 60008, 87704, 142519, 208297, 285038, 416594, 570076, 833188, 1140152, 1666376, 2707861, 5415722, 10831444, 21662888]

約数ペア:

[(1, 21662888), (2, 10831444), (4, 5415722), (8, 2707861), (13, 1666376), (19, 1140152), (26, 833188), (38, 570076), (52, 416594), (76, 285038), (104, 208297), (152, 142519), (247, 87704), (361, 60008), (494, 43852), (577, 37544), (722, 30004), (988, 21926), (1154, 18772), (1444, 15002), (1976, 10963), (2308, 9386), (2888, 7501), (4616, 4693)]