20788912

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{2027}}^1$

素因数の和:2676

約数の個数: 20

約数和(自身を含む): 40361256

約数和(自身を除く): 19572344

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2027, 2564, 4054, 5128, 8108, 10256, 16216, 32432, 1299307, 2598614, 5197228, 10394456, 20788912]

約数ペア:

[(1, 20788912), (2, 10394456), (4, 5197228), (8, 2598614), (16, 1299307), (641, 32432), (1282, 16216), (2027, 10256), (2564, 8108), (4054, 5128)]