21086017005

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19799077}}^1$

素因数の和:19799156

約数の個数: 16

約数和(自身を含む): 34212806784

約数和(自身を除く): 13126789779

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19799077, 59397231, 98995385, 296986155, 1405734467, 4217203401, 7028672335, 21086017005]

約数ペア:

[(1, 21086017005), (3, 7028672335), (5, 4217203401), (15, 1405734467), (71, 296986155), (213, 98995385), (355, 59397231), (1065, 19799077)]