21105870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1993}}^1$

素因数の和:2356

約数の個数: 32

約数和(自身を含む): 50823072

約数和(自身を除く): 29717202

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 353, 706, 1059, 1765, 1993, 2118, 3530, 3986, 5295, 5979, 9965, 10590, 11958, 19930, 29895, 59790, 703529, 1407058, 2110587, 3517645, 4221174, 7035290, 10552935, 21105870]

約数ペア:

[(1, 21105870), (2, 10552935), (3, 7035290), (5, 4221174), (6, 3517645), (10, 2110587), (15, 1407058), (30, 703529), (353, 59790), (706, 29895), (1059, 19930), (1765, 11958), (1993, 10590), (2118, 9965), (3530, 5979), (3986, 5295)]