21000992

素因数分解:

$2^5\times {\mathrm{83}}^1\times {\mathrm{7907}}^1$

素因数の和:8000

約数の個数: 24

約数和(自身を含む): 41849136

約数和(自身を除く): 20848144

約数列:

[1, 2, 4, 8, 16, 32, 83, 166, 332, 664, 1328, 2656, 7907, 15814, 31628, 63256, 126512, 253024, 656281, 1312562, 2625124, 5250248, 10500496, 21000992]

約数ペア:

[(1, 21000992), (2, 10500496), (4, 5250248), (8, 2625124), (16, 1312562), (32, 656281), (83, 253024), (166, 126512), (332, 63256), (664, 31628), (1328, 15814), (2656, 7907)]