18517878

素因数分解:

$2^1\times 3^2\times {\mathrm{257}}^1\times {\mathrm{4003}}^1$

素因数の和:4268

約数の個数: 24

約数和(自身を含む): 40288248

約数和(自身を除く): 21770370

約数列:

[1, 2, 3, 6, 9, 18, 257, 514, 771, 1542, 2313, 4003, 4626, 8006, 12009, 24018, 36027, 72054, 1028771, 2057542, 3086313, 6172626, 9258939, 18517878]

約数ペア:

[(1, 18517878), (2, 9258939), (3, 6172626), (6, 3086313), (9, 2057542), (18, 1028771), (257, 72054), (514, 36027), (771, 24018), (1542, 12009), (2313, 8006), (4003, 4626)]