210319821

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{36571}}^1$

素因数の和:36654

約数の個数: 20

約数和(自身を含む): 318615264

約数和(自身を除く): 108295443

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 36571, 109713, 329139, 987417, 2596541, 2962251, 7789623, 23368869, 70106607, 210319821]

約数ペア:

[(1, 210319821), (3, 70106607), (9, 23368869), (27, 7789623), (71, 2962251), (81, 2596541), (213, 987417), (639, 329139), (1917, 109713), (5751, 36571)]