21193177252

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{2999}}^1\times {\mathrm{135899}}^1$

素因数の和:138915

約数の個数: 24

約数和(自身を含む): 39954600000

約数和(自身を除く): 18761422748

約数列:

[1, 2, 4, 13, 26, 52, 2999, 5998, 11996, 38987, 77974, 135899, 155948, 271798, 543596, 1766687, 3533374, 7066748, 407561101, 815122202, 1630244404, 5298294313, 10596588626, 21193177252]

約数ペア:

[(1, 21193177252), (2, 10596588626), (4, 5298294313), (13, 1630244404), (26, 815122202), (52, 407561101), (2999, 7066748), (5998, 3533374), (11996, 1766687), (38987, 543596), (77974, 271798), (135899, 155948)]