21990622

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:564

約数の個数: 32

約数和(自身を含む): 37122624

約数和(自身を除く): 15132002

約数列:

[1, 2, 17, 23, 34, 46, 61, 122, 391, 461, 782, 922, 1037, 1403, 2074, 2806, 7837, 10603, 15674, 21206, 23851, 28121, 47702, 56242, 180251, 360502, 478057, 646783, 956114, 1293566, 10995311, 21990622]

約数ペア:

[(1, 21990622), (2, 10995311), (17, 1293566), (23, 956114), (34, 646783), (46, 478057), (61, 360502), (122, 180251), (391, 56242), (461, 47702), (782, 28121), (922, 23851), (1037, 21206), (1403, 15674), (2074, 10603), (2806, 7837)]