20447644

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31751}}^1$

素因数の和:31785

約数の個数: 24

約数和(自身を含む): 42674688

約数和(自身を除く): 22227044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31751, 63502, 127004, 222257, 444514, 730273, 889028, 1460546, 2921092, 5111911, 10223822, 20447644]

約数ペア:

[(1, 20447644), (2, 10223822), (4, 5111911), (7, 2921092), (14, 1460546), (23, 889028), (28, 730273), (46, 444514), (92, 222257), (161, 127004), (322, 63502), (644, 31751)]