21519032

素因数分解:

$2^3\times {\mathrm{1031}}^1\times {\mathrm{2609}}^1$

素因数の和:3646

約数の個数: 16

約数和(自身を含む): 40402800

約数和(自身を除く): 18883768

約数列:

[1, 2, 4, 8, 1031, 2062, 2609, 4124, 5218, 8248, 10436, 20872, 2689879, 5379758, 10759516, 21519032]

約数ペア:

[(1, 21519032), (2, 10759516), (4, 5379758), (8, 2689879), (1031, 20872), (2062, 10436), (2609, 8248), (4124, 5218)]