17988568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{643}}^1$

素因数の和:931

約数の個数: 32

約数和(自身を含む): 36514800

約数和(自身を除く): 18526232

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 269, 538, 643, 1076, 1286, 2152, 2572, 3497, 5144, 6994, 8359, 13988, 16718, 27976, 33436, 66872, 172967, 345934, 691868, 1383736, 2248571, 4497142, 8994284, 17988568]

約数ペア:

[(1, 17988568), (2, 8994284), (4, 4497142), (8, 2248571), (13, 1383736), (26, 691868), (52, 345934), (104, 172967), (269, 66872), (538, 33436), (643, 27976), (1076, 16718), (1286, 13988), (2152, 8359), (2572, 6994), (3497, 5144)]