21509133

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5641}}^1$

素因数の和:5716

約数の個数: 16

約数和(自身を含む): 30331392

約数和(自身を除く): 8822259

約数列:

[1, 3, 31, 41, 93, 123, 1271, 3813, 5641, 16923, 174871, 231281, 524613, 693843, 7169711, 21509133]

約数ペア:

[(1, 21509133), (3, 7169711), (31, 693843), (41, 524613), (93, 231281), (123, 174871), (1271, 16923), (3813, 5641)]