28629027

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 49600512

約数和(自身を除く): 20971485

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 107, 137, 217, 279, 321, 411, 651, 749, 959, 963, 1233, 1953, 2247, 2877, 3317, 4247, 6741, 8631, 9951, 12741, 14659, 23219, 29729, 29853, 38223, 43977, 69657, 89187, 102613, 131931, 208971, 267561, 307839, 454429, 923517, 1363287, 3181003, 4089861, 9543009, 28629027]

約数ペア:

[(1, 28629027), (3, 9543009), (7, 4089861), (9, 3181003), (21, 1363287), (31, 923517), (63, 454429), (93, 307839), (107, 267561), (137, 208971), (217, 131931), (279, 102613), (321, 89187), (411, 69657), (651, 43977), (749, 38223), (959, 29853), (963, 29729), (1233, 23219), (1953, 14659), (2247, 12741), (2877, 9951), (3317, 8631), (4247, 6741)]