215909673

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 370944000

約数和(自身を除く): 155034327

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 139, 229, 323, 357, 399, 417, 687, 969, 973, 1603, 2261, 2363, 2641, 2919, 3893, 4351, 4809, 6783, 7089, 7923, 11679, 13053, 16541, 18487, 27251, 30457, 31831, 44897, 49623, 55461, 73967, 81753, 91371, 95493, 134691, 221901, 222817, 314279, 517769, 541127, 604789, 668451, 942837, 1553307, 1623381, 1814367, 3787889, 4233523, 10281413, 11363667, 12700569, 30844239, 71969891, 215909673]

約数ペア:

[(1, 215909673), (3, 71969891), (7, 30844239), (17, 12700569), (19, 11363667), (21, 10281413), (51, 4233523), (57, 3787889), (119, 1814367), (133, 1623381), (139, 1553307), (229, 942837), (323, 668451), (357, 604789), (399, 541127), (417, 517769), (687, 314279), (969, 222817), (973, 221901), (1603, 134691), (2261, 95493), (2363, 91371), (2641, 81753), (2919, 73967), (3893, 55461), (4351, 49623), (4809, 44897), (6783, 31831), (7089, 30457), (7923, 27251), (11679, 18487), (13053, 16541)]