21500768

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 23206048

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 131, 184, 223, 262, 368, 446, 524, 736, 892, 1048, 1784, 2096, 3013, 3568, 4192, 5129, 6026, 7136, 10258, 12052, 20516, 24104, 29213, 41032, 48208, 58426, 82064, 96416, 116852, 164128, 233704, 467408, 671899, 934816, 1343798, 2687596, 5375192, 10750384, 21500768]

約数ペア:

[(1, 21500768), (2, 10750384), (4, 5375192), (8, 2687596), (16, 1343798), (23, 934816), (32, 671899), (46, 467408), (92, 233704), (131, 164128), (184, 116852), (223, 96416), (262, 82064), (368, 58426), (446, 48208), (524, 41032), (736, 29213), (892, 24104), (1048, 20516), (1784, 12052), (2096, 10258), (3013, 7136), (3568, 6026), (4192, 5129)]