31111321

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:372

約数の個数: 16

約数和(自身を含む): 33251328

約数和(自身を除く): 2140007

約数列:

[1, 31, 47, 131, 163, 1457, 4061, 5053, 6157, 7661, 21353, 190867, 237491, 661943, 1003591, 31111321]

約数ペア:

[(1, 31111321), (31, 1003591), (47, 661943), (131, 237491), (163, 190867), (1457, 21353), (4061, 7661), (5053, 6157)]