21647826

素因数分解:

$2^1\times 3^2\times {\mathrm{89}}^1\times {\mathrm{13513}}^1$

素因数の和:13610

約数の個数: 24

約数和(自身を含む): 47434140

約数和(自身を除く): 25786314

約数列:

[1, 2, 3, 6, 9, 18, 89, 178, 267, 534, 801, 1602, 13513, 27026, 40539, 81078, 121617, 243234, 1202657, 2405314, 3607971, 7215942, 10823913, 21647826]

約数ペア:

[(1, 21647826), (2, 10823913), (3, 7215942), (6, 3607971), (9, 2405314), (18, 1202657), (89, 243234), (178, 121617), (267, 81078), (534, 40539), (801, 27026), (1602, 13513)]