31180317

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{4513}}^1$

素因数の和:4577

約数の個数: 24

約数和(自身を含む): 49401216

約数和(自身を除く): 18220899

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 4513, 6909, 13539, 31591, 94773, 212111, 221137, 636333, 663411, 1484777, 4454331, 10393439, 31180317]

約数ペア:

[(1, 31180317), (3, 10393439), (7, 4454331), (21, 1484777), (47, 663411), (49, 636333), (141, 221137), (147, 212111), (329, 94773), (987, 31591), (2303, 13539), (4513, 6909)]