21356050

素因数分解:

$2^1\times 5^2\times {\mathrm{431}}^1\times {\mathrm{991}}^1$

素因数の和:1434

約数の個数: 24

約数和(自身を含む): 39854592

約数和(自身を除く): 18498542

約数列:

[1, 2, 5, 10, 25, 50, 431, 862, 991, 1982, 2155, 4310, 4955, 9910, 10775, 21550, 24775, 49550, 427121, 854242, 2135605, 4271210, 10678025, 21356050]

約数ペア:

[(1, 21356050), (2, 10678025), (5, 4271210), (10, 2135605), (25, 854242), (50, 427121), (431, 49550), (862, 24775), (991, 21550), (1982, 10775), (2155, 9910), (4310, 4955)]