19742788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1213}}^1$

素因数の和:1543

約数の個数: 24

約数和(自身を含む): 37357208

約数和(自身を除く): 17614420

約数列:

[1, 2, 4, 13, 26, 52, 313, 626, 1213, 1252, 2426, 4069, 4852, 8138, 15769, 16276, 31538, 63076, 379669, 759338, 1518676, 4935697, 9871394, 19742788]

約数ペア:

[(1, 19742788), (2, 9871394), (4, 4935697), (13, 1518676), (26, 759338), (52, 379669), (313, 63076), (626, 31538), (1213, 16276), (1252, 15769), (2426, 8138), (4069, 4852)]