20981886

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{94513}}^1$

素因数の和:94555

約数の個数: 16

約数和(自身を含む): 43098384

約数和(自身を除く): 22116498

約数列:

[1, 2, 3, 6, 37, 74, 111, 222, 94513, 189026, 283539, 567078, 3496981, 6993962, 10490943, 20981886]

約数ペア:

[(1, 20981886), (2, 10490943), (3, 6993962), (6, 3496981), (37, 567078), (74, 283539), (111, 189026), (222, 94513)]