21106240

素因数分解:

$2^6\times 5^1\times {\mathrm{65957}}^1$

素因数の和:65974

約数の個数: 28

約数和(自身を含む): 50259996

約数和(自身を除く): 29153756

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65957, 131914, 263828, 329785, 527656, 659570, 1055312, 1319140, 2110624, 2638280, 4221248, 5276560, 10553120, 21106240]

約数ペア:

[(1, 21106240), (2, 10553120), (4, 5276560), (5, 4221248), (8, 2638280), (10, 2110624), (16, 1319140), (20, 1055312), (32, 659570), (40, 527656), (64, 329785), (80, 263828), (160, 131914), (320, 65957)]