21408268

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{12959}}^1$

素因数の和:13029

約数の個数: 24

約数和(自身を含む): 43545600

約数和(自身を除く): 22137332

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 236, 413, 826, 1652, 12959, 25918, 51836, 90713, 181426, 362852, 764581, 1529162, 3058324, 5352067, 10704134, 21408268]

約数ペア:

[(1, 21408268), (2, 10704134), (4, 5352067), (7, 3058324), (14, 1529162), (28, 764581), (59, 362852), (118, 181426), (236, 90713), (413, 51836), (826, 25918), (1652, 12959)]