21810264

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{659}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 62726400

約数和(自身を除く): 40916136

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 197, 394, 591, 659, 788, 1182, 1318, 1379, 1576, 1977, 2364, 2636, 2758, 3954, 4137, 4613, 4728, 5272, 5516, 7908, 8274, 9226, 11032, 13839, 15816, 16548, 18452, 27678, 33096, 36904, 55356, 110712, 129823, 259646, 389469, 519292, 778938, 908761, 1038584, 1557876, 1817522, 2726283, 3115752, 3635044, 5452566, 7270088, 10905132, 21810264]

約数ペア:

[(1, 21810264), (2, 10905132), (3, 7270088), (4, 5452566), (6, 3635044), (7, 3115752), (8, 2726283), (12, 1817522), (14, 1557876), (21, 1038584), (24, 908761), (28, 778938), (42, 519292), (56, 389469), (84, 259646), (168, 129823), (197, 110712), (394, 55356), (591, 36904), (659, 33096), (788, 27678), (1182, 18452), (1318, 16548), (1379, 15816), (1576, 13839), (1977, 11032), (2364, 9226), (2636, 8274), (2758, 7908), (3954, 5516), (4137, 5272), (4613, 4728)]