18211529

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 21326208

約数和(自身を除く): 3114679

約数列:

[1, 7, 73, 157, 227, 511, 1099, 1589, 11461, 16571, 35639, 80227, 115997, 249473, 2601647, 18211529]

約数ペア:

[(1, 18211529), (7, 2601647), (73, 249473), (157, 115997), (227, 80227), (511, 35639), (1099, 16571), (1589, 11461)]