278350527

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1289}}^1$

素因数の和:1432

約数の個数: 48

約数和(自身を含む): 469415520

約数和(自身を除く): 191064993

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 113, 147, 273, 339, 637, 791, 1289, 1469, 1911, 2373, 3867, 4407, 5537, 9023, 10283, 16611, 16757, 27069, 30849, 50271, 63161, 71981, 117299, 145657, 189483, 215943, 351897, 436971, 821093, 1019599, 1893541, 2463279, 3058797, 5680623, 7137193, 13254787, 21411579, 39764361, 92783509, 278350527]

約数ペア:

[(1, 278350527), (3, 92783509), (7, 39764361), (13, 21411579), (21, 13254787), (39, 7137193), (49, 5680623), (91, 3058797), (113, 2463279), (147, 1893541), (273, 1019599), (339, 821093), (637, 436971), (791, 351897), (1289, 215943), (1469, 189483), (1911, 145657), (2373, 117299), (3867, 71981), (4407, 63161), (5537, 50271), (9023, 30849), (10283, 27069), (16611, 16757)]