81781147

素因数分解:

$7^3\times {\mathrm{151}}^1\times {\mathrm{1579}}^1$

素因数の和:1751

約数の個数: 16

約数和(自身を含む): 96064000

約数和(自身を除く): 14282853

約数列:

[1, 7, 49, 151, 343, 1057, 1579, 7399, 11053, 51793, 77371, 238429, 541597, 1669003, 11683021, 81781147]

約数ペア:

[(1, 81781147), (7, 11683021), (49, 1669003), (151, 541597), (343, 238429), (1057, 77371), (1579, 51793), (7399, 11053)]