20951690

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{25243}}^1$

素因数の和:25333

約数の個数: 16

約数和(自身を含む): 38168928

約数和(自身を除く): 17217238

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 25243, 50486, 126215, 252430, 2095169, 4190338, 10475845, 20951690]

約数ペア:

[(1, 20951690), (2, 10475845), (5, 4190338), (10, 2095169), (83, 252430), (166, 126215), (415, 50486), (830, 25243)]