18380901

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1693}}^1$

素因数の和:1761

約数の個数: 32

約数和(自身を含む): 31223808

約数和(自身を除く): 12842907

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 1693, 3619, 5079, 10857, 11851, 18623, 35553, 55869, 79571, 130361, 238713, 391083, 556997, 875281, 1670991, 2625843, 6126967, 18380901]

約数ペア:

[(1, 18380901), (3, 6126967), (7, 2625843), (11, 1670991), (21, 875281), (33, 556997), (47, 391083), (77, 238713), (141, 130361), (231, 79571), (329, 55869), (517, 35553), (987, 18623), (1551, 11851), (1693, 10857), (3619, 5079)]