21330291

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^2$

素因数の和:263

約数の個数: 24

約数和(自身を含む): 31156272

約数和(自身を除く): 9825981

約数列:

[1, 3, 17, 41, 51, 101, 123, 303, 697, 1717, 2091, 4141, 5151, 10201, 12423, 30603, 70397, 173417, 211191, 418241, 520251, 1254723, 7110097, 21330291]

約数ペア:

[(1, 21330291), (3, 7110097), (17, 1254723), (41, 520251), (51, 418241), (101, 211191), (123, 173417), (303, 70397), (697, 30603), (1717, 12423), (2091, 10201), (4141, 5151)]