20517964

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{2423}}^1$

素因数の和:2529

約数の個数: 24

約数和(自身を含む): 37668960

約数和(自身を除く): 17150996

約数列:

[1, 2, 4, 29, 58, 73, 116, 146, 292, 2117, 2423, 4234, 4846, 8468, 9692, 70267, 140534, 176879, 281068, 353758, 707516, 5129491, 10258982, 20517964]

約数ペア:

[(1, 20517964), (2, 10258982), (4, 5129491), (29, 707516), (58, 353758), (73, 281068), (116, 176879), (146, 140534), (292, 70267), (2117, 9692), (2423, 8468), (4234, 4846)]