21841760

素因数分解:

$2^5\times 5^1\times {\mathrm{136511}}^1$

素因数の和:136526

約数の個数: 24

約数和(自身を含む): 51601536

約数和(自身を除く): 29759776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136511, 273022, 546044, 682555, 1092088, 1365110, 2184176, 2730220, 4368352, 5460440, 10920880, 21841760]

約数ペア:

[(1, 21841760), (2, 10920880), (4, 5460440), (5, 4368352), (8, 2730220), (10, 2184176), (16, 1365110), (20, 1092088), (32, 682555), (40, 546044), (80, 273022), (160, 136511)]