20404532

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{1223}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 36945216

約数和(自身を除く): 16540684

約数列:

[1, 2, 4, 43, 86, 97, 172, 194, 388, 1223, 2446, 4171, 4892, 8342, 16684, 52589, 105178, 118631, 210356, 237262, 474524, 5101133, 10202266, 20404532]

約数ペア:

[(1, 20404532), (2, 10202266), (4, 5101133), (43, 474524), (86, 237262), (97, 210356), (172, 118631), (194, 105178), (388, 52589), (1223, 16684), (2446, 8342), (4171, 4892)]