218193731

素因数分解:

$7^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1\times {\mathrm{859}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 252468480

約数和(自身を除く): 34274749

約数列:

[1, 7, 131, 277, 859, 917, 1939, 6013, 36287, 112529, 237943, 254009, 787703, 1665601, 31170533, 218193731]

約数ペア:

[(1, 218193731), (7, 31170533), (131, 1665601), (277, 787703), (859, 254009), (917, 237943), (1939, 112529), (6013, 36287)]