21022035

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19739}}^1$

素因数の和:19818

約数の個数: 16

約数和(自身を含む): 34110720

約数和(自身を除く): 13088685

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19739, 59217, 98695, 296085, 1401469, 4204407, 7007345, 21022035]

約数ペア:

[(1, 21022035), (3, 7007345), (5, 4204407), (15, 1401469), (71, 296085), (213, 98695), (355, 59217), (1065, 19739)]