20825658

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{839}}^1$

素因数の和:1051

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 31066182

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 197, 394, 591, 839, 1182, 1379, 1678, 1773, 2517, 2758, 3546, 4137, 5034, 5873, 7551, 8274, 11746, 12411, 15102, 17619, 24822, 35238, 52857, 105714, 165283, 330566, 495849, 991698, 1156981, 1487547, 2313962, 2975094, 3470943, 6941886, 10412829, 20825658]

約数ペア:

[(1, 20825658), (2, 10412829), (3, 6941886), (6, 3470943), (7, 2975094), (9, 2313962), (14, 1487547), (18, 1156981), (21, 991698), (42, 495849), (63, 330566), (126, 165283), (197, 105714), (394, 52857), (591, 35238), (839, 24822), (1182, 17619), (1379, 15102), (1678, 12411), (1773, 11746), (2517, 8274), (2758, 7551), (3546, 5873), (4137, 5034)]