21277685

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29759}}^1$

素因数の和:29788

約数の個数: 16

約数和(自身を含む): 29998080

約数和(自身を除く): 8720395

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 29759, 148795, 327349, 386867, 1636745, 1934335, 4255537, 21277685]

約数ペア:

[(1, 21277685), (5, 4255537), (11, 1934335), (13, 1636745), (55, 386867), (65, 327349), (143, 148795), (715, 29759)]