21031660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3517}}^1$

素因数の和:3562

約数の個数: 48

約数和(自身を含む): 49646016

約数和(自身を除く): 28614356

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3517, 5980, 7034, 14068, 17585, 35170, 45721, 70340, 80891, 91442, 161782, 182884, 228605, 323564, 404455, 457210, 808910, 914420, 1051583, 1617820, 2103166, 4206332, 5257915, 10515830, 21031660]

約数ペア:

[(1, 21031660), (2, 10515830), (4, 5257915), (5, 4206332), (10, 2103166), (13, 1617820), (20, 1051583), (23, 914420), (26, 808910), (46, 457210), (52, 404455), (65, 323564), (92, 228605), (115, 182884), (130, 161782), (230, 91442), (260, 80891), (299, 70340), (460, 45721), (598, 35170), (1196, 17585), (1495, 14068), (2990, 7034), (3517, 5980)]