21517053

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{2357}}^1$

素因数の和:2556

約数の個数: 16

約数和(自身を含む): 30559680

約数和(自身を除く): 9042627

約数列:

[1, 3, 17, 51, 179, 537, 2357, 3043, 7071, 9129, 40069, 120207, 421903, 1265709, 7172351, 21517053]

約数ペア:

[(1, 21517053), (3, 7172351), (17, 1265709), (51, 421903), (179, 120207), (537, 40069), (2357, 9129), (3043, 7071)]