388640763

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{7919}}^1$

素因数の和:7992

約数の個数: 48

約数和(自身を含む): 691891200

約数和(自身を除く): 303250437

約数列:

[1, 3, 7, 9, 19, 21, 41, 57, 63, 123, 133, 171, 287, 369, 399, 779, 861, 1197, 2337, 2583, 5453, 7011, 7919, 16359, 23757, 49077, 55433, 71271, 150461, 166299, 324679, 451383, 498897, 974037, 1053227, 1354149, 2272753, 2922111, 3159681, 6168901, 6818259, 9479043, 18506703, 20454777, 43182307, 55520109, 129546921, 388640763]

約数ペア:

[(1, 388640763), (3, 129546921), (7, 55520109), (9, 43182307), (19, 20454777), (21, 18506703), (41, 9479043), (57, 6818259), (63, 6168901), (123, 3159681), (133, 2922111), (171, 2272753), (287, 1354149), (369, 1053227), (399, 974037), (779, 498897), (861, 451383), (1197, 324679), (2337, 166299), (2583, 150461), (5453, 71271), (7011, 55433), (7919, 49077), (16359, 23757)]