64171989

素因数分解:

$3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{5333}}^1$

素因数の和:5537

約数の個数: 24

約数和(自身を含む): 106509312

約数和(自身を除く): 42337323

約数列:

[1, 3, 7, 9, 21, 63, 191, 573, 1337, 1719, 4011, 5333, 12033, 15999, 37331, 47997, 111993, 335979, 1018603, 3055809, 7130221, 9167427, 21390663, 64171989]

約数ペア:

[(1, 64171989), (3, 21390663), (7, 9167427), (9, 7130221), (21, 3055809), (63, 1018603), (191, 335979), (573, 111993), (1337, 47997), (1719, 37331), (4011, 15999), (5333, 12033)]