21264388

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{769}}^1$

素因数の和:1027

約数の個数: 24

約数和(自身を含む): 38635520

約数和(自身を除く): 17371132

約数列:

[1, 2, 4, 31, 62, 124, 223, 446, 769, 892, 1538, 3076, 6913, 13826, 23839, 27652, 47678, 95356, 171487, 342974, 685948, 5316097, 10632194, 21264388]

約数ペア:

[(1, 21264388), (2, 10632194), (4, 5316097), (31, 685948), (62, 342974), (124, 171487), (223, 95356), (446, 47678), (769, 27652), (892, 23839), (1538, 13826), (3076, 6913)]