21241210

素因数分解:

$2^1\times 5^1\times {\mathrm{947}}^1\times {\mathrm{2243}}^1$

素因数の和:3197

約数の個数: 16

約数和(自身を含む): 38291616

約数和(自身を除く): 17050406

約数列:

[1, 2, 5, 10, 947, 1894, 2243, 4486, 4735, 9470, 11215, 22430, 2124121, 4248242, 10620605, 21241210]

約数ペア:

[(1, 21241210), (2, 10620605), (5, 4248242), (10, 2124121), (947, 22430), (1894, 11215), (2243, 9470), (4486, 4735)]