19893975

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 34604928

約数和(自身を除く): 14710953

約数列:

[1, 3, 5, 15, 25, 37, 67, 75, 107, 111, 185, 201, 321, 335, 535, 555, 925, 1005, 1605, 1675, 2479, 2675, 2775, 3959, 5025, 7169, 7437, 8025, 11877, 12395, 19795, 21507, 35845, 37185, 59385, 61975, 98975, 107535, 179225, 185925, 265253, 296925, 537675, 795759, 1326265, 3978795, 6631325, 19893975]

約数ペア:

[(1, 19893975), (3, 6631325), (5, 3978795), (15, 1326265), (25, 795759), (37, 537675), (67, 296925), (75, 265253), (107, 185925), (111, 179225), (185, 107535), (201, 98975), (321, 61975), (335, 59385), (535, 37185), (555, 35845), (925, 21507), (1005, 19795), (1605, 12395), (1675, 11877), (2479, 8025), (2675, 7437), (2775, 7169), (3959, 5025)]