20571536

素因数分解:

$2^4\times {\mathrm{149}}^1\times {\mathrm{8629}}^1$

素因数の和:8786

約数の個数: 20

約数和(自身を含む): 40129500

約数和(自身を除く): 19557964

約数列:

[1, 2, 4, 8, 16, 149, 298, 596, 1192, 2384, 8629, 17258, 34516, 69032, 138064, 1285721, 2571442, 5142884, 10285768, 20571536]

約数ペア:

[(1, 20571536), (2, 10285768), (4, 5142884), (8, 2571442), (16, 1285721), (149, 138064), (298, 69032), (596, 34516), (1192, 17258), (2384, 8629)]