2020221

素因数分解:

$3^4\times 7^2\times {\mathrm{509}}^1$

素因数の和:535

約数の個数: 30

約数和(自身を含む): 3517470

約数和(自身を除く): 1497249

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 509, 567, 1323, 1527, 3563, 3969, 4581, 10689, 13743, 24941, 32067, 41229, 74823, 96201, 224469, 288603, 673407, 2020221]

約数ペア:

[(1, 2020221), (3, 673407), (7, 288603), (9, 224469), (21, 96201), (27, 74823), (49, 41229), (63, 32067), (81, 24941), (147, 13743), (189, 10689), (441, 4581), (509, 3969), (567, 3563), (1323, 1527)]