21868664

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1423}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 43830720

約数和(自身を除く): 21962056

約数列:

[1, 2, 4, 8, 17, 34, 68, 113, 136, 226, 452, 904, 1423, 1921, 2846, 3842, 5692, 7684, 11384, 15368, 24191, 48382, 96764, 160799, 193528, 321598, 643196, 1286392, 2733583, 5467166, 10934332, 21868664]

約数ペア:

[(1, 21868664), (2, 10934332), (4, 5467166), (8, 2733583), (17, 1286392), (34, 643196), (68, 321598), (113, 193528), (136, 160799), (226, 96764), (452, 48382), (904, 24191), (1423, 15368), (1921, 11384), (2846, 7684), (3842, 5692)]