21304540

素因数分解:

$2^2\times 5^1\times {\mathrm{467}}^1\times {\mathrm{2281}}^1$

素因数の和:2757

約数の個数: 24

約数和(自身を含む): 44854992

約数和(自身を除く): 23550452

約数列:

[1, 2, 4, 5, 10, 20, 467, 934, 1868, 2281, 2335, 4562, 4670, 9124, 9340, 11405, 22810, 45620, 1065227, 2130454, 4260908, 5326135, 10652270, 21304540]

約数ペア:

[(1, 21304540), (2, 10652270), (4, 5326135), (5, 4260908), (10, 2130454), (20, 1065227), (467, 45620), (934, 22810), (1868, 11405), (2281, 9340), (2335, 9124), (4562, 4670)]