21029684

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{2393}}^1$

素因数の和:2436

約数の個数: 24

約数和(自身を含む): 39884040

約数和(自身を除く): 18854356

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 2197, 2393, 4394, 4786, 8788, 9572, 31109, 62218, 124436, 404417, 808834, 1617668, 5257421, 10514842, 21029684]

約数ペア:

[(1, 21029684), (2, 10514842), (4, 5257421), (13, 1617668), (26, 808834), (52, 404417), (169, 124436), (338, 62218), (676, 31109), (2197, 9572), (2393, 8788), (4394, 4786)]