21904.000000

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{1409}}^1$

素因数の和:1425

約数の個数: 32

約数和(自身を含む): 676800

約数和(自身を除く): 440088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 1409, 2818, 4227, 5636, 8454, 9863, 11272, 16908, 19726, 29589, 33816, 39452, 59178, 78904, 118356, 236712]

約数ペア:

[(1, 236712), (2, 118356), (3, 78904), (4, 59178), (6, 39452), (7, 33816), (8, 29589), (12, 19726), (14, 16908), (21, 11272), (24, 9863), (28, 8454), (42, 5636), (56, 4227), (84, 2818), (168, 1409)]