20573774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 35652960

約数和(自身を除く): 15079186

約数列:

[1, 2, 13, 17, 26, 34, 89, 178, 221, 442, 523, 1046, 1157, 1513, 2314, 3026, 6799, 8891, 13598, 17782, 19669, 39338, 46547, 93094, 115583, 231166, 605111, 791299, 1210222, 1582598, 10286887, 20573774]

約数ペア:

[(1, 20573774), (2, 10286887), (13, 1582598), (17, 1210222), (26, 791299), (34, 605111), (89, 231166), (178, 115583), (221, 93094), (442, 46547), (523, 39338), (1046, 19669), (1157, 17782), (1513, 13598), (2314, 8891), (3026, 6799)]