21790002

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1087}}^1$

素因数の和:1362

約数の個数: 32

約数和(自身を含む): 47158272

約数和(自身を除く): 25368270

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257, 514, 771, 1087, 1542, 2174, 3261, 3341, 6522, 6682, 10023, 14131, 20046, 28262, 42393, 84786, 279359, 558718, 838077, 1676154, 3631667, 7263334, 10895001, 21790002]

約数ペア:

[(1, 21790002), (2, 10895001), (3, 7263334), (6, 3631667), (13, 1676154), (26, 838077), (39, 558718), (78, 279359), (257, 84786), (514, 42393), (771, 28262), (1087, 20046), (1542, 14131), (2174, 10023), (3261, 6682), (3341, 6522)]