21000331748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{641}}^1\times {\mathrm{7229}}^1$

素因数の和:7988

約数の個数: 48

約数和(自身を含む): 40549541760

約数和(自身を除く): 19549210012

約数列:

[1, 2, 4, 11, 22, 44, 103, 206, 412, 641, 1133, 1282, 2266, 2564, 4532, 7051, 7229, 14102, 14458, 28204, 28916, 66023, 79519, 132046, 159038, 264092, 318076, 726253, 744587, 1452506, 1489174, 2905012, 2978348, 4633789, 8190457, 9267578, 16380914, 18535156, 32761828, 50971679, 101943358, 203886716, 477280267, 954560534, 1909121068, 5250082937, 10500165874, 21000331748]

約数ペア:

[(1, 21000331748), (2, 10500165874), (4, 5250082937), (11, 1909121068), (22, 954560534), (44, 477280267), (103, 203886716), (206, 101943358), (412, 50971679), (641, 32761828), (1133, 18535156), (1282, 16380914), (2266, 9267578), (2564, 8190457), (4532, 4633789), (7051, 2978348), (7229, 2905012), (14102, 1489174), (14458, 1452506), (28204, 744587), (28916, 726253), (66023, 318076), (79519, 264092), (132046, 159038)]