421775505

素因数分解:

$3^4\times 5^1\times {\mathrm{1041421}}^1$

素因数の和:1041438

約数の個数: 20

約数和(自身を含む): 756072372

約数和(自身を除く): 334296867

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1041421, 3124263, 5207105, 9372789, 15621315, 28118367, 46863945, 84355101, 140591835, 421775505]

約数ペア:

[(1, 421775505), (3, 140591835), (5, 84355101), (9, 46863945), (15, 28118367), (27, 15621315), (45, 9372789), (81, 5207105), (135, 3124263), (405, 1041421)]