21207804968

素因数分解:

$2^3\times 7^1\times {\mathrm{378710803}}^1$

素因数の和:378710816

約数の個数: 16

約数和(自身を含む): 45445296480

約数和(自身を除く): 24237491512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 378710803, 757421606, 1514843212, 2650975621, 3029686424, 5301951242, 10603902484, 21207804968]

約数ペア:

[(1, 21207804968), (2, 10603902484), (4, 5301951242), (7, 3029686424), (8, 2650975621), (14, 1514843212), (28, 757421606), (56, 378710803)]