138507173

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 171225600

約数和(自身を除く): 32718427

約数列:

[1, 7, 23, 49, 97, 161, 181, 343, 679, 1127, 1267, 2231, 4163, 4753, 7889, 8869, 15617, 17557, 29141, 33271, 62083, 109319, 122899, 203987, 403811, 765233, 860293, 1427909, 2826677, 6022051, 19786739, 138507173]

約数ペア:

[(1, 138507173), (7, 19786739), (23, 6022051), (49, 2826677), (97, 1427909), (161, 860293), (181, 765233), (343, 403811), (679, 203987), (1127, 122899), (1267, 109319), (2231, 62083), (4163, 33271), (4753, 29141), (7889, 17557), (8869, 15617)]