20411578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^2$

素因数の和:390

約数の個数: 24

約数和(自身を含む): 34678656

約数和(自身を除く): 14267078

約数列:

[1, 2, 11, 22, 31, 62, 173, 341, 346, 682, 1903, 3806, 5363, 10726, 29929, 58993, 59858, 117986, 329219, 658438, 927799, 1855598, 10205789, 20411578]

約数ペア:

[(1, 20411578), (2, 10205789), (11, 1855598), (22, 927799), (31, 658438), (62, 329219), (173, 117986), (341, 59858), (346, 58993), (682, 29929), (1903, 10726), (3806, 5363)]