1215691209

素因数分解:

$3^2\times {\mathrm{179}}^1\times {\mathrm{419}}^1\times {\mathrm{1801}}^1$

素因数の和:2405

約数の個数: 24

約数和(自身を含む): 1771005600

約数和(自身を除く): 555314391

約数列:

[1, 3, 9, 179, 419, 537, 1257, 1611, 1801, 3771, 5403, 16209, 75001, 225003, 322379, 675009, 754619, 967137, 2263857, 2901411, 6791571, 135076801, 405230403, 1215691209]

約数ペア:

[(1, 1215691209), (3, 405230403), (9, 135076801), (179, 6791571), (419, 2901411), (537, 2263857), (1257, 967137), (1611, 754619), (1801, 675009), (3771, 322379), (5403, 225003), (16209, 75001)]