1393281

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:282

約数の個数: 20

約数和(自身を含む): 2114112

約数和(自身を除く): 720831

約数列:

[1, 3, 9, 27, 81, 103, 167, 309, 501, 927, 1503, 2781, 4509, 8343, 13527, 17201, 51603, 154809, 464427, 1393281]

約数ペア:

[(1, 1393281), (3, 464427), (9, 154809), (27, 51603), (81, 17201), (103, 13527), (167, 8343), (309, 4509), (501, 2781), (927, 1503)]