21083937

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 12462303

約数列:

[1, 3, 7, 21, 31, 93, 139, 217, 233, 417, 651, 699, 973, 1631, 2919, 4309, 4893, 7223, 12927, 21669, 30163, 32387, 50561, 90489, 97161, 151683, 226709, 680127, 1003997, 3011991, 7027979, 21083937]

約数ペア:

[(1, 21083937), (3, 7027979), (7, 3011991), (21, 1003997), (31, 680127), (93, 226709), (139, 151683), (217, 97161), (233, 90489), (417, 50561), (651, 32387), (699, 30163), (973, 21669), (1631, 12927), (2919, 7223), (4309, 4893)]