13221420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{220357}}^1$

素因数の和:220369

約数の個数: 24

約数和(自身を含む): 37020144

約数和(自身を除く): 23798724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 220357, 440714, 661071, 881428, 1101785, 1322142, 2203570, 2644284, 3305355, 4407140, 6610710, 13221420]

約数ペア:

[(1, 13221420), (2, 6610710), (3, 4407140), (4, 3305355), (5, 2644284), (6, 2203570), (10, 1322142), (12, 1101785), (15, 881428), (20, 661071), (30, 440714), (60, 220357)]