217020916

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{336989}}^1$

素因数の和:337023

約数の個数: 24

約数和(自身を含む): 452914560

約数和(自身を除く): 235893644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 336989, 673978, 1347956, 2358923, 4717846, 7750747, 9435692, 15501494, 31002988, 54255229, 108510458, 217020916]

約数ペア:

[(1, 217020916), (2, 108510458), (4, 54255229), (7, 31002988), (14, 15501494), (23, 9435692), (28, 7750747), (46, 4717846), (92, 2358923), (161, 1347956), (322, 673978), (644, 336989)]