21496891

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:702

約数の個数: 16

約数和(自身を含む): 24681888

約数和(自身を除く): 3184997

約数列:

[1, 13, 17, 211, 221, 461, 2743, 3587, 5993, 7837, 46631, 97271, 101881, 1264523, 1653607, 21496891]

約数ペア:

[(1, 21496891), (13, 1653607), (17, 1264523), (211, 101881), (221, 97271), (461, 46631), (2743, 7837), (3587, 5993)]