505920009

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{238529}}^1$

素因数の和:238640

約数の個数: 16

約数和(自身を含む): 778561920

約数和(自身を除く): 272641911

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 238529, 715587, 1669703, 5009109, 24091429, 72274287, 168640003, 505920009]

約数ペア:

[(1, 505920009), (3, 168640003), (7, 72274287), (21, 24091429), (101, 5009109), (303, 1669703), (707, 715587), (2121, 238529)]