21921545

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:712

約数の個数: 16

約数和(自身を含む): 26937792

約数和(自身を除く): 5016247

約数列:

[1, 5, 83, 101, 415, 505, 523, 2615, 8383, 41915, 43409, 52823, 217045, 264115, 4384309, 21921545]

約数ペア:

[(1, 21921545), (5, 4384309), (83, 264115), (101, 217045), (415, 52823), (505, 43409), (523, 41915), (2615, 8383)]