21658742

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 38525760

約数和(自身を除く): 16867018

約数列:

[1, 2, 7, 14, 41, 82, 97, 194, 287, 389, 574, 679, 778, 1358, 2723, 3977, 5446, 7954, 15949, 27839, 31898, 37733, 55678, 75466, 111643, 223286, 264131, 528262, 1547053, 3094106, 10829371, 21658742]

約数ペア:

[(1, 21658742), (2, 10829371), (7, 3094106), (14, 1547053), (41, 528262), (82, 264131), (97, 223286), (194, 111643), (287, 75466), (389, 55678), (574, 37733), (679, 31898), (778, 27839), (1358, 15949), (2723, 7954), (3977, 5446)]