21357685

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{811}}^1$

素因数の和:1068

約数の個数: 16

約数和(自身を含む): 26893440

約数和(自身を除く): 5535755

約数列:

[1, 5, 23, 115, 229, 811, 1145, 4055, 5267, 18653, 26335, 93265, 185719, 928595, 4271537, 21357685]

約数ペア:

[(1, 21357685), (5, 4271537), (23, 928595), (115, 185719), (229, 93265), (811, 26335), (1145, 18653), (4055, 5267)]