19643390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2851}}^1$

素因数の和:2924

約数の個数: 32

約数和(自身を含む): 38810016

約数和(自身を除く): 19166626

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 2851, 3445, 5702, 6890, 14255, 28510, 37063, 74126, 151103, 185315, 302206, 370630, 755515, 1511030, 1964339, 3928678, 9821695, 19643390]

約数ペア:

[(1, 19643390), (2, 9821695), (5, 3928678), (10, 1964339), (13, 1511030), (26, 755515), (53, 370630), (65, 302206), (106, 185315), (130, 151103), (265, 74126), (530, 37063), (689, 28510), (1378, 14255), (2851, 6890), (3445, 5702)]