18959343

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 28449792

約数和(自身を除く): 9490449

約数列:

[1, 3, 13, 39, 41, 71, 123, 167, 213, 501, 533, 923, 1599, 2171, 2769, 2911, 6513, 6847, 8733, 11857, 20541, 35571, 37843, 89011, 113529, 154141, 267033, 462423, 486137, 1458411, 6319781, 18959343]

約数ペア:

[(1, 18959343), (3, 6319781), (13, 1458411), (39, 486137), (41, 462423), (71, 267033), (123, 154141), (167, 113529), (213, 89011), (501, 37843), (533, 35571), (923, 20541), (1599, 11857), (2171, 8733), (2769, 6847), (2911, 6513)]