21708076

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2659}}^1$

素因数の和:2833

約数の個数: 24

約数和(自身を含む): 41187440

約数和(自身を除く): 19479364

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2659, 4082, 5318, 8164, 10636, 34567, 69134, 138268, 417463, 834926, 1669852, 5427019, 10854038, 21708076]

約数ペア:

[(1, 21708076), (2, 10854038), (4, 5427019), (13, 1669852), (26, 834926), (52, 417463), (157, 138268), (314, 69134), (628, 34567), (2041, 10636), (2659, 8164), (4082, 5318)]