21735741

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1\times {\mathrm{757}}^1$

素因数の和:1340

約数の個数: 16

約数和(自身を含む): 30780864

約数和(自身を除く): 9045123

約数列:

[1, 3, 17, 51, 563, 757, 1689, 2271, 9571, 12869, 28713, 38607, 426191, 1278573, 7245247, 21735741]

約数ペア:

[(1, 21735741), (3, 7245247), (17, 1278573), (51, 426191), (563, 38607), (757, 28713), (1689, 12869), (2271, 9571)]