21656466

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4871}}^1$

素因数の和:4911

約数の個数: 48

約数和(自身を含む): 53202240

約数和(自身を除く): 31545774

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4446, 4871, 9742, 14613, 29226, 43839, 63323, 87678, 92549, 126646, 185098, 189969, 277647, 379938, 555294, 569907, 832941, 1139814, 1203137, 1665882, 2406274, 3609411, 7218822, 10828233, 21656466]

約数ペア:

[(1, 21656466), (2, 10828233), (3, 7218822), (6, 3609411), (9, 2406274), (13, 1665882), (18, 1203137), (19, 1139814), (26, 832941), (38, 569907), (39, 555294), (57, 379938), (78, 277647), (114, 189969), (117, 185098), (171, 126646), (234, 92549), (247, 87678), (342, 63323), (494, 43839), (741, 29226), (1482, 14613), (2223, 9742), (4446, 4871)]