20493664

素因数分解:

$2^5\times {\mathrm{163}}^1\times {\mathrm{3929}}^1$

素因数の和:4102

約数の個数: 24

約数和(自身を含む): 40604760

約数和(自身を除く): 20111096

約数列:

[1, 2, 4, 8, 16, 32, 163, 326, 652, 1304, 2608, 3929, 5216, 7858, 15716, 31432, 62864, 125728, 640427, 1280854, 2561708, 5123416, 10246832, 20493664]

約数ペア:

[(1, 20493664), (2, 10246832), (4, 5123416), (8, 2561708), (16, 1280854), (32, 640427), (163, 125728), (326, 62864), (652, 31432), (1304, 15716), (2608, 7858), (3929, 5216)]