21338174

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74609}}^1$

素因数の和:74635

約数の個数: 16

約数和(自身を含む): 37603440

約数和(自身を除く): 16265266

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74609, 149218, 820699, 969917, 1641398, 1939834, 10669087, 21338174]

約数ペア:

[(1, 21338174), (2, 10669087), (11, 1939834), (13, 1641398), (22, 969917), (26, 820699), (143, 149218), (286, 74609)]