21490898

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{461}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 38187072

約数和(自身を除く): 16696174

約数列:

[1, 2, 11, 13, 22, 26, 143, 163, 286, 326, 461, 922, 1793, 2119, 3586, 4238, 5071, 5993, 10142, 11986, 23309, 46618, 65923, 75143, 131846, 150286, 826573, 976859, 1653146, 1953718, 10745449, 21490898]

約数ペア:

[(1, 21490898), (2, 10745449), (11, 1953718), (13, 1653146), (22, 976859), (26, 826573), (143, 150286), (163, 131846), (286, 75143), (326, 65923), (461, 46618), (922, 23309), (1793, 11986), (2119, 10142), (3586, 5993), (4238, 5071)]