30987719

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2389}}^1$

素因数の和:2522

約数の個数: 16

約数和(自身を含む): 37857600

約数和(自身を除く): 6869881

約数列:

[1, 7, 17, 109, 119, 763, 1853, 2389, 12971, 16723, 40613, 260401, 284291, 1822807, 4426817, 30987719]

約数ペア:

[(1, 30987719), (7, 4426817), (17, 1822807), (109, 284291), (119, 260401), (763, 40613), (1853, 16723), (2389, 12971)]