1640291331

素因数分解:

$3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1\times {\mathrm{2111}}^1$

素因数の和:2511

約数の個数: 32

約数和(自身を含む): 2527100928

約数和(自身を除く): 886809597

約数列:

[1, 3, 7, 21, 163, 227, 489, 681, 1141, 1589, 2111, 3423, 4767, 6333, 14777, 37001, 44331, 111003, 259007, 344093, 479197, 777021, 1032279, 1437591, 2408651, 3354379, 7225953, 10063137, 78109111, 234327333, 546763777, 1640291331]

約数ペア:

[(1, 1640291331), (3, 546763777), (7, 234327333), (21, 78109111), (163, 10063137), (227, 7225953), (489, 3354379), (681, 2408651), (1141, 1437591), (1589, 1032279), (2111, 777021), (3423, 479197), (4767, 344093), (6333, 259007), (14777, 111003), (37001, 44331)]