21220164

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28069}}^1$

素因数の和:28089

約数の個数: 48

約数和(自身を含む): 62876800

約数和(自身を除く): 41656636

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28069, 56138, 84207, 112276, 168414, 196483, 252621, 336828, 392966, 505242, 589449, 757863, 785932, 1010484, 1178898, 1515726, 1768347, 2357796, 3031452, 3536694, 5305041, 7073388, 10610082, 21220164]

約数ペア:

[(1, 21220164), (2, 10610082), (3, 7073388), (4, 5305041), (6, 3536694), (7, 3031452), (9, 2357796), (12, 1768347), (14, 1515726), (18, 1178898), (21, 1010484), (27, 785932), (28, 757863), (36, 589449), (42, 505242), (54, 392966), (63, 336828), (84, 252621), (108, 196483), (126, 168414), (189, 112276), (252, 84207), (378, 56138), (756, 28069)]