19463860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74861}}^1$

素因数の和:74883

約数の個数: 24

約数和(自身を含む): 44018856

約数和(自身を除く): 24554996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74861, 149722, 299444, 374305, 748610, 973193, 1497220, 1946386, 3892772, 4865965, 9731930, 19463860]

約数ペア:

[(1, 19463860), (2, 9731930), (4, 4865965), (5, 3892772), (10, 1946386), (13, 1497220), (20, 973193), (26, 748610), (52, 374305), (65, 299444), (130, 149722), (260, 74861)]