21372140

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{3371}}^1$

素因数の和:3697

約数の個数: 24

約数和(自身を含む): 45036432

約数和(自身を除く): 23664292

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 3371, 6340, 6742, 13484, 16855, 33710, 67420, 1068607, 2137214, 4274428, 5343035, 10686070, 21372140]

約数ペア:

[(1, 21372140), (2, 10686070), (4, 5343035), (5, 4274428), (10, 2137214), (20, 1068607), (317, 67420), (634, 33710), (1268, 16855), (1585, 13484), (3170, 6742), (3371, 6340)]