19780796

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15031}}^1$

素因数の和:15089

約数の個数: 24

約数和(自身を含む): 40406016

約数和(自身を除く): 20625220

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15031, 30062, 60124, 105217, 210434, 420868, 706457, 1412914, 2825828, 4945199, 9890398, 19780796]

約数ペア:

[(1, 19780796), (2, 9890398), (4, 4945199), (7, 2825828), (14, 1412914), (28, 706457), (47, 420868), (94, 210434), (188, 105217), (329, 60124), (658, 30062), (1316, 15031)]