21155446

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2136

約数の個数: 32

約数和(自身を含む): 37775808

約数和(自身を除く): 16620362

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 221, 299, 391, 442, 598, 782, 2081, 4162, 5083, 10166, 27053, 35377, 47863, 54106, 70754, 95726, 459901, 622219, 813671, 919802, 1244438, 1627342, 10577723, 21155446]

約数ペア:

[(1, 21155446), (2, 10577723), (13, 1627342), (17, 1244438), (23, 919802), (26, 813671), (34, 622219), (46, 459901), (221, 95726), (299, 70754), (391, 54106), (442, 47863), (598, 35377), (782, 27053), (2081, 10166), (4162, 5083)]