21127444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 41708800

約数和(自身を除く): 20581356

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 79, 139, 148, 158, 278, 316, 481, 556, 962, 1027, 1807, 1924, 2054, 2923, 3614, 4108, 5143, 5846, 7228, 10286, 10981, 11692, 20572, 21962, 37999, 43924, 66859, 75998, 133718, 142753, 151996, 267436, 285506, 406297, 571012, 812594, 1625188, 5281861, 10563722, 21127444]

約数ペア:

[(1, 21127444), (2, 10563722), (4, 5281861), (13, 1625188), (26, 812594), (37, 571012), (52, 406297), (74, 285506), (79, 267436), (139, 151996), (148, 142753), (158, 133718), (278, 75998), (316, 66859), (481, 43924), (556, 37999), (962, 21962), (1027, 20572), (1807, 11692), (1924, 10981), (2054, 10286), (2923, 7228), (3614, 5846), (4108, 5143)]