20813304

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 55641600

約数和(自身を除く): 34828296

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 139, 204, 278, 367, 408, 417, 556, 734, 834, 1101, 1112, 1468, 1668, 2202, 2363, 2936, 3336, 4404, 4726, 6239, 7089, 8808, 9452, 12478, 14178, 18717, 18904, 24956, 28356, 37434, 49912, 51013, 56712, 74868, 102026, 149736, 153039, 204052, 306078, 408104, 612156, 867221, 1224312, 1734442, 2601663, 3468884, 5203326, 6937768, 10406652, 20813304]

約数ペア:

[(1, 20813304), (2, 10406652), (3, 6937768), (4, 5203326), (6, 3468884), (8, 2601663), (12, 1734442), (17, 1224312), (24, 867221), (34, 612156), (51, 408104), (68, 306078), (102, 204052), (136, 153039), (139, 149736), (204, 102026), (278, 74868), (367, 56712), (408, 51013), (417, 49912), (556, 37434), (734, 28356), (834, 24956), (1101, 18904), (1112, 18717), (1468, 14178), (1668, 12478), (2202, 9452), (2363, 8808), (2936, 7089), (3336, 6239), (4404, 4726)]