28091974239

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{631}}^1$

素因数の和:1021

約数の個数: 96

約数和(自身を含む): 48554588160

約数和(自身を除く): 20462613921

約数列:

[1, 3, 7, 9, 21, 37, 63, 71, 111, 213, 259, 269, 333, 497, 631, 639, 777, 807, 1491, 1883, 1893, 2331, 2421, 2627, 4417, 4473, 5649, 5679, 7881, 9953, 13251, 16947, 18389, 19099, 23347, 23643, 29859, 39753, 44801, 55167, 57297, 69671, 70041, 89577, 133693, 134403, 163429, 165501, 169739, 171891, 209013, 210123, 313607, 401079, 403209, 490287, 509217, 627039, 706663, 940821, 1188173, 1203237, 1470861, 1527651, 1657637, 2119989, 2822463, 3564519, 4946641, 4972911, 6280343, 6359967, 10693557, 11603459, 12051469, 14839923, 14918733, 18841029, 34810377, 36154407, 43962401, 44519769, 56523087, 84360283, 104431131, 108463221, 131887203, 253080849, 395661609, 445904353, 759242547, 1337713059, 3121330471, 4013139177, 9363991413, 28091974239]

約数ペア:

[(1, 28091974239), (3, 9363991413), (7, 4013139177), (9, 3121330471), (21, 1337713059), (37, 759242547), (63, 445904353), (71, 395661609), (111, 253080849), (213, 131887203), (259, 108463221), (269, 104431131), (333, 84360283), (497, 56523087), (631, 44519769), (639, 43962401), (777, 36154407), (807, 34810377), (1491, 18841029), (1883, 14918733), (1893, 14839923), (2331, 12051469), (2421, 11603459), (2627, 10693557), (4417, 6359967), (4473, 6280343), (5649, 4972911), (5679, 4946641), (7881, 3564519), (9953, 2822463), (13251, 2119989), (16947, 1657637), (18389, 1527651), (19099, 1470861), (23347, 1203237), (23643, 1188173), (29859, 940821), (39753, 706663), (44801, 627039), (55167, 509217), (57297, 490287), (69671, 403209), (70041, 401079), (89577, 313607), (133693, 210123), (134403, 209013), (163429, 171891), (165501, 169739)]