18413521

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1584

約数の個数: 16

約数和(自身を含む): 22141440

約数和(自身を除く): 3727919

約数列:

[1, 7, 29, 61, 203, 427, 1487, 1769, 10409, 12383, 43123, 90707, 301861, 634949, 2630503, 18413521]

約数ペア:

[(1, 18413521), (7, 2630503), (29, 634949), (61, 301861), (203, 90707), (427, 43123), (1487, 12383), (1769, 10409)]