21296919

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{6299}}^1$

素因数の和:6339

約数の個数: 24

約数和(自身を含む): 34473600

約数和(自身を除く): 13176681

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 6299, 18897, 44093, 132279, 144877, 308651, 434631, 925953, 1014139, 3042417, 7098973, 21296919]

約数ペア:

[(1, 21296919), (3, 7098973), (7, 3042417), (21, 1014139), (23, 925953), (49, 434631), (69, 308651), (147, 144877), (161, 132279), (483, 44093), (1127, 18897), (3381, 6299)]