19929015

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 37065600

約数和(自身を除く): 17136585

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 109, 153, 239, 255, 327, 545, 717, 765, 981, 1195, 1635, 1853, 2151, 3585, 4063, 4905, 5559, 9265, 10755, 12189, 16677, 20315, 26051, 27795, 36567, 60945, 78153, 83385, 130255, 182835, 234459, 390765, 442867, 1172295, 1328601, 2214335, 3985803, 6643005, 19929015]

約数ペア:

[(1, 19929015), (3, 6643005), (5, 3985803), (9, 2214335), (15, 1328601), (17, 1172295), (45, 442867), (51, 390765), (85, 234459), (109, 182835), (153, 130255), (239, 83385), (255, 78153), (327, 60945), (545, 36567), (717, 27795), (765, 26051), (981, 20315), (1195, 16677), (1635, 12189), (1853, 10755), (2151, 9265), (3585, 5559), (4063, 4905)]