210357

素因数分解:

$3^4\times 7^2\times {\mathrm{53}}^1$

素因数の和:79

約数の個数: 30

約数和(自身を含む): 372438

約数和(自身を除く): 162081

約数列:

[1, 3, 7, 9, 21, 27, 49, 53, 63, 81, 147, 159, 189, 371, 441, 477, 567, 1113, 1323, 1431, 2597, 3339, 3969, 4293, 7791, 10017, 23373, 30051, 70119, 210357]

約数ペア:

[(1, 210357), (3, 70119), (7, 30051), (9, 23373), (21, 10017), (27, 7791), (49, 4293), (53, 3969), (63, 3339), (81, 2597), (147, 1431), (159, 1323), (189, 1113), (371, 567), (441, 477)]