21225016

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{443}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 40998960

約数和(自身を除く): 19773944

約数列:

[1, 2, 4, 8, 53, 106, 113, 212, 226, 424, 443, 452, 886, 904, 1772, 3544, 5989, 11978, 23479, 23956, 46958, 47912, 50059, 93916, 100118, 187832, 200236, 400472, 2653127, 5306254, 10612508, 21225016]

約数ペア:

[(1, 21225016), (2, 10612508), (4, 5306254), (8, 2653127), (53, 400472), (106, 200236), (113, 187832), (212, 100118), (226, 93916), (424, 50059), (443, 47912), (452, 46958), (886, 23956), (904, 23479), (1772, 11978), (3544, 5989)]