20664364

素因数分解:

$2^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1753}}^1$

素因数の和:2185

約数の個数: 24

約数和(自身を含む): 41450528

約数和(自身を除く): 20786164

約数列:

[1, 2, 4, 7, 14, 28, 421, 842, 1684, 1753, 2947, 3506, 5894, 7012, 11788, 12271, 24542, 49084, 738013, 1476026, 2952052, 5166091, 10332182, 20664364]

約数ペア:

[(1, 20664364), (2, 10332182), (4, 5166091), (7, 2952052), (14, 1476026), (28, 738013), (421, 49084), (842, 24542), (1684, 12271), (1753, 11788), (2947, 7012), (3506, 5894)]