19717858

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 33359040

約数和(自身を除く): 13641182

約数列:

[1, 2, 17, 19, 34, 38, 131, 233, 262, 323, 466, 646, 2227, 2489, 3961, 4427, 4454, 4978, 7922, 8854, 30523, 42313, 61046, 75259, 84626, 150518, 518891, 579937, 1037782, 1159874, 9858929, 19717858]

約数ペア:

[(1, 19717858), (2, 9858929), (17, 1159874), (19, 1037782), (34, 579937), (38, 518891), (131, 150518), (233, 84626), (262, 75259), (323, 61046), (466, 42313), (646, 30523), (2227, 8854), (2489, 7922), (3961, 4978), (4427, 4454)]