20790788

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3853}}^1$

素因数の和:3947

約数の個数: 24

約数和(自身を含む): 38848320

約数和(自身を除く): 18057532

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 3853, 5396, 7706, 15412, 73207, 146414, 273563, 292828, 547126, 1094252, 5197697, 10395394, 20790788]

約数ペア:

[(1, 20790788), (2, 10395394), (4, 5197697), (19, 1094252), (38, 547126), (71, 292828), (76, 273563), (142, 146414), (284, 73207), (1349, 15412), (2698, 7706), (3853, 5396)]