201637989

素因数分解:

$3^2\times 7^2\times {\mathrm{457229}}^1$

素因数の和:457249

約数の個数: 18

約数和(自身を含む): 338807430

約数和(自身を除く): 137169441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 457229, 1371687, 3200603, 4115061, 9601809, 22404221, 28805427, 67212663, 201637989]

約数ペア:

[(1, 201637989), (3, 67212663), (7, 28805427), (9, 22404221), (21, 9601809), (49, 4115061), (63, 3200603), (147, 1371687), (441, 457229)]