20890404

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{18719}}^1$

素因数の和:18760

約数の個数: 36

約数和(自身を含む): 54512640

約数和(自身を除く): 33622236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 18719, 37438, 56157, 74876, 112314, 168471, 224628, 336942, 580289, 673884, 1160578, 1740867, 2321156, 3481734, 5222601, 6963468, 10445202, 20890404]

約数ペア:

[(1, 20890404), (2, 10445202), (3, 6963468), (4, 5222601), (6, 3481734), (9, 2321156), (12, 1740867), (18, 1160578), (31, 673884), (36, 580289), (62, 336942), (93, 224628), (124, 168471), (186, 112314), (279, 74876), (372, 56157), (558, 37438), (1116, 18719)]