51221814

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 120683520

約数和(自身を除く): 69461706

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 89, 142, 178, 193, 213, 267, 386, 426, 497, 534, 579, 623, 994, 1158, 1246, 1351, 1491, 1869, 2702, 2982, 3738, 4053, 6319, 8106, 12638, 13703, 17177, 18957, 27406, 34354, 37914, 41109, 44233, 51531, 82218, 88466, 95921, 103062, 120239, 132699, 191842, 240478, 265398, 287763, 360717, 575526, 721434, 1219567, 2439134, 3658701, 7317402, 8536969, 17073938, 25610907, 51221814]

約数ペア:

[(1, 51221814), (2, 25610907), (3, 17073938), (6, 8536969), (7, 7317402), (14, 3658701), (21, 2439134), (42, 1219567), (71, 721434), (89, 575526), (142, 360717), (178, 287763), (193, 265398), (213, 240478), (267, 191842), (386, 132699), (426, 120239), (497, 103062), (534, 95921), (579, 88466), (623, 82218), (994, 51531), (1158, 44233), (1246, 41109), (1351, 37914), (1491, 34354), (1869, 27406), (2702, 18957), (2982, 17177), (3738, 13703), (4053, 12638), (6319, 8106)]