215880518

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{1741}}^1$

素因数の和:2288

約数の個数: 32

約数和(自身を含む): 392827968

約数和(自身を除く): 176947450

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 521, 1042, 1741, 3482, 3647, 7294, 8857, 12187, 17714, 24374, 29597, 59194, 61999, 123998, 207179, 414358, 907061, 1814122, 6349427, 12698854, 15420037, 30840074, 107940259, 215880518]

約数ペア:

[(1, 215880518), (2, 107940259), (7, 30840074), (14, 15420037), (17, 12698854), (34, 6349427), (119, 1814122), (238, 907061), (521, 414358), (1042, 207179), (1741, 123998), (3482, 61999), (3647, 59194), (7294, 29597), (8857, 24374), (12187, 17714)]