20880548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1429}}^1$

素因数の和:1727

約数の個数: 24

約数和(自身を含む): 39519480

約数和(自身を除く): 18638932

約数列:

[1, 2, 4, 13, 26, 52, 281, 562, 1124, 1429, 2858, 3653, 5716, 7306, 14612, 18577, 37154, 74308, 401549, 803098, 1606196, 5220137, 10440274, 20880548]

約数ペア:

[(1, 20880548), (2, 10440274), (4, 5220137), (13, 1606196), (26, 803098), (52, 401549), (281, 74308), (562, 37154), (1124, 18577), (1429, 14612), (2858, 7306), (3653, 5716)]