216221404

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{249103}}^1$

素因数の和:249145

約数の個数: 24

約数和(自身を含む): 446394368

約数和(自身を除く): 230172964

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 249103, 498206, 996412, 1743721, 3487442, 6974884, 7722193, 15444386, 30888772, 54055351, 108110702, 216221404]

約数ペア:

[(1, 216221404), (2, 108110702), (4, 54055351), (7, 30888772), (14, 15444386), (28, 7722193), (31, 6974884), (62, 3487442), (124, 1743721), (217, 996412), (434, 498206), (868, 249103)]