21279466

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:586

約数の個数: 24

約数和(自身を含む): 34870284

約数和(自身を除く): 13590818

約数列:

[1, 2, 13, 26, 157, 169, 314, 338, 401, 802, 2041, 4082, 5213, 10426, 26533, 53066, 62957, 67769, 125914, 135538, 818441, 1636882, 10639733, 21279466]

約数ペア:

[(1, 21279466), (2, 10639733), (13, 1636882), (26, 818441), (157, 135538), (169, 125914), (314, 67769), (338, 62957), (401, 53066), (802, 26533), (2041, 10426), (4082, 5213)]