21469617

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20389}}^1$

素因数の和:20414

約数の個数: 20

約数和(自身を含む): 34540660

約数和(自身を除く): 13071043

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20389, 61167, 183501, 265057, 550503, 795171, 1651509, 2385513, 7156539, 21469617]

約数ペア:

[(1, 21469617), (3, 7156539), (9, 2385513), (13, 1651509), (27, 795171), (39, 550503), (81, 265057), (117, 183501), (351, 61167), (1053, 20389)]