219399525

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{20747}}^1$

素因数の和:20810

約数の個数: 36

約数和(自身を含む): 401349312

約数和(自身を除く): 181949787

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 2115, 3525, 10575, 20747, 62241, 103735, 186723, 311205, 518675, 933615, 975109, 1556025, 2925327, 4668075, 4875545, 8775981, 14626635, 24377725, 43879905, 73133175, 219399525]

約数ペア:

[(1, 219399525), (3, 73133175), (5, 43879905), (9, 24377725), (15, 14626635), (25, 8775981), (45, 4875545), (47, 4668075), (75, 2925327), (141, 1556025), (225, 975109), (235, 933615), (423, 518675), (705, 311205), (1175, 186723), (2115, 103735), (3525, 62241), (10575, 20747)]