21580052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{613}}^1\times {\mathrm{677}}^1$

素因数の和:1307

約数の個数: 24

約数和(自身を含む): 40796616

約数和(自身を除く): 19216564

約数列:

[1, 2, 4, 13, 26, 52, 613, 677, 1226, 1354, 2452, 2708, 7969, 8801, 15938, 17602, 31876, 35204, 415001, 830002, 1660004, 5395013, 10790026, 21580052]

約数ペア:

[(1, 21580052), (2, 10790026), (4, 5395013), (13, 1660004), (26, 830002), (52, 415001), (613, 35204), (677, 31876), (1226, 17602), (1354, 15938), (2452, 8801), (2708, 7969)]