18764235

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{839}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 18975285

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 839, 1065, 1491, 2485, 2517, 3195, 4195, 4473, 5873, 7455, 7551, 12585, 17619, 22365, 29365, 37755, 52857, 59569, 88095, 178707, 264285, 297845, 416983, 536121, 893535, 1250949, 2084915, 2680605, 3752847, 6254745, 18764235]

約数ペア:

[(1, 18764235), (3, 6254745), (5, 3752847), (7, 2680605), (9, 2084915), (15, 1250949), (21, 893535), (35, 536121), (45, 416983), (63, 297845), (71, 264285), (105, 178707), (213, 88095), (315, 59569), (355, 52857), (497, 37755), (639, 29365), (839, 22365), (1065, 17619), (1491, 12585), (2485, 7551), (2517, 7455), (3195, 5873), (4195, 4473)]