261479337

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{16319}}^1$

素因数の和:16445

約数の個数: 24

約数和(自身を含む): 409305600

約数和(自身を除く): 147826263

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 2289, 5341, 16023, 16319, 48957, 114233, 342699, 799631, 1778771, 2398893, 5336313, 12451397, 37354191, 87159779, 261479337]

約数ペア:

[(1, 261479337), (3, 87159779), (7, 37354191), (21, 12451397), (49, 5336313), (109, 2398893), (147, 1778771), (327, 799631), (763, 342699), (2289, 114233), (5341, 48957), (16023, 16319)]