217873905

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{7187}}^1$

素因数の和:7285

約数の個数: 32

約数和(自身を含む): 364345344

約数和(自身を除く): 146471439

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 645, 705, 2021, 6063, 7187, 10105, 21561, 30315, 35935, 107805, 309041, 337789, 927123, 1013367, 1545205, 1688945, 4635615, 5066835, 14524927, 43574781, 72624635, 217873905]

約数ペア:

[(1, 217873905), (3, 72624635), (5, 43574781), (15, 14524927), (43, 5066835), (47, 4635615), (129, 1688945), (141, 1545205), (215, 1013367), (235, 927123), (645, 337789), (705, 309041), (2021, 107805), (6063, 35935), (7187, 30315), (10105, 21561)]