21767408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104651}}^1$

素因数の和:104672

約数の個数: 20

約数和(自身を含む): 45418968

約数和(自身を除く): 23651560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104651, 209302, 418604, 837208, 1360463, 1674416, 2720926, 5441852, 10883704, 21767408]

約数ペア:

[(1, 21767408), (2, 10883704), (4, 5441852), (8, 2720926), (13, 1674416), (16, 1360463), (26, 837208), (52, 418604), (104, 209302), (208, 104651)]