21051228

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1579}}^1$

素因数の和:1698

約数の個数: 48

約数和(自身を含む): 54149760

約数和(自身を除く): 33098532

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 101, 132, 202, 303, 404, 606, 1111, 1212, 1579, 2222, 3158, 3333, 4444, 4737, 6316, 6666, 9474, 13332, 17369, 18948, 34738, 52107, 69476, 104214, 159479, 208428, 318958, 478437, 637916, 956874, 1754269, 1913748, 3508538, 5262807, 7017076, 10525614, 21051228]

約数ペア:

[(1, 21051228), (2, 10525614), (3, 7017076), (4, 5262807), (6, 3508538), (11, 1913748), (12, 1754269), (22, 956874), (33, 637916), (44, 478437), (66, 318958), (101, 208428), (132, 159479), (202, 104214), (303, 69476), (404, 52107), (606, 34738), (1111, 18948), (1212, 17369), (1579, 13332), (2222, 9474), (3158, 6666), (3333, 6316), (4444, 4737)]