258743471

素因数分解:

$7^2\times {\mathrm{131}}^1\times {\mathrm{173}}^1\times {\mathrm{233}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 306347184

約数和(自身を除く): 47603713

約数列:

[1, 7, 49, 131, 173, 233, 917, 1211, 1631, 6419, 8477, 11417, 22663, 30523, 40309, 158641, 213661, 282163, 1110487, 1495627, 1975141, 5280479, 36963353, 258743471]

約数ペア:

[(1, 258743471), (7, 36963353), (49, 5280479), (131, 1975141), (173, 1495627), (233, 1110487), (917, 282163), (1211, 213661), (1631, 158641), (6419, 40309), (8477, 30523), (11417, 22663)]