20904106

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7841}}^1$

素因数の和:7917

約数の個数: 16

約数和(自身を含む): 33124608

約数和(自身を除く): 12220502

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 7841, 15682, 243071, 337163, 486142, 674326, 10452053, 20904106]

約数ペア:

[(1, 20904106), (2, 10452053), (31, 674326), (43, 486142), (62, 337163), (86, 243071), (1333, 15682), (2666, 7841)]