215865783

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1279}}^1$

素因数の和:1361

約数の個数: 64

約数和(自身を含む): 393216000

約数和(自身を除く): 177350217

約数列:

[1, 3, 7, 9, 19, 21, 27, 47, 57, 63, 133, 141, 171, 189, 329, 399, 423, 513, 893, 987, 1197, 1269, 1279, 2679, 2961, 3591, 3837, 6251, 8037, 8883, 8953, 11511, 18753, 24111, 24301, 26859, 34533, 56259, 60113, 72903, 80577, 168777, 170107, 180339, 218709, 241731, 420791, 510321, 541017, 656127, 1142147, 1262373, 1530963, 1623051, 3426441, 3787119, 4592889, 7995029, 10279323, 11361357, 23985087, 30837969, 71955261, 215865783]

約数ペア:

[(1, 215865783), (3, 71955261), (7, 30837969), (9, 23985087), (19, 11361357), (21, 10279323), (27, 7995029), (47, 4592889), (57, 3787119), (63, 3426441), (133, 1623051), (141, 1530963), (171, 1262373), (189, 1142147), (329, 656127), (399, 541017), (423, 510321), (513, 420791), (893, 241731), (987, 218709), (1197, 180339), (1269, 170107), (1279, 168777), (2679, 80577), (2961, 72903), (3591, 60113), (3837, 56259), (6251, 34533), (8037, 26859), (8883, 24301), (8953, 24111), (11511, 18753)]