28904226

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{1409}}^1$

素因数の和:1690

約数の個数: 32

約数和(自身を含む): 62536320

約数和(自身を除く): 33632094

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 263, 526, 789, 1409, 1578, 2818, 3419, 4227, 6838, 8454, 10257, 18317, 20514, 36634, 54951, 109902, 370567, 741134, 1111701, 2223402, 4817371, 9634742, 14452113, 28904226]

約数ペア:

[(1, 28904226), (2, 14452113), (3, 9634742), (6, 4817371), (13, 2223402), (26, 1111701), (39, 741134), (78, 370567), (263, 109902), (526, 54951), (789, 36634), (1409, 20514), (1578, 18317), (2818, 10257), (3419, 8454), (4227, 6838)]