21494560

素因数分解:

$2^5\times 5^1\times {\mathrm{134341}}^1$

素因数の和:134356

約数の個数: 24

約数和(自身を含む): 50781276

約数和(自身を除く): 29286716

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 134341, 268682, 537364, 671705, 1074728, 1343410, 2149456, 2686820, 4298912, 5373640, 10747280, 21494560]

約数ペア:

[(1, 21494560), (2, 10747280), (4, 5373640), (5, 4298912), (8, 2686820), (10, 2149456), (16, 1343410), (20, 1074728), (32, 671705), (40, 537364), (80, 268682), (160, 134341)]