21483832

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 43754040

約数和(自身を除く): 22270208

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 173, 344, 346, 361, 692, 722, 817, 1384, 1444, 1634, 2888, 3268, 3287, 6536, 6574, 7439, 13148, 14878, 15523, 26296, 29756, 31046, 59512, 62092, 62453, 124184, 124906, 141341, 249812, 282682, 499624, 565364, 1130728, 2685479, 5370958, 10741916, 21483832]

約数ペア:

[(1, 21483832), (2, 10741916), (4, 5370958), (8, 2685479), (19, 1130728), (38, 565364), (43, 499624), (76, 282682), (86, 249812), (152, 141341), (172, 124906), (173, 124184), (344, 62453), (346, 62092), (361, 59512), (692, 31046), (722, 29756), (817, 26296), (1384, 15523), (1444, 14878), (1634, 13148), (2888, 7439), (3268, 6574), (3287, 6536)]