21517270

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9649}}^1$

素因数の和:9879

約数の個数: 16

約数和(自身を含む): 38908800

約数和(自身を除く): 17391530

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 9649, 19298, 48245, 96490, 2151727, 4303454, 10758635, 21517270]

約数ペア:

[(1, 21517270), (2, 10758635), (5, 4303454), (10, 2151727), (223, 96490), (446, 48245), (1115, 19298), (2230, 9649)]