209968479

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4045

約数の個数: 48

約数和(自身を含む): 374587200

約数和(自身を除く): 164618721

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 343, 357, 441, 833, 1029, 1071, 2499, 3087, 4001, 5831, 7497, 12003, 17493, 28007, 36009, 52479, 68017, 84021, 196049, 204051, 252063, 476119, 588147, 612153, 1372343, 1428357, 1764441, 3332833, 4117029, 4285071, 9998499, 12351087, 23329831, 29995497, 69989493, 209968479]

約数ペア:

[(1, 209968479), (3, 69989493), (7, 29995497), (9, 23329831), (17, 12351087), (21, 9998499), (49, 4285071), (51, 4117029), (63, 3332833), (119, 1764441), (147, 1428357), (153, 1372343), (343, 612153), (357, 588147), (441, 476119), (833, 252063), (1029, 204051), (1071, 196049), (2499, 84021), (3087, 68017), (4001, 52479), (5831, 36009), (7497, 28007), (12003, 17493)]