20828816

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21341}}^1$

素因数の和:21410

約数の個数: 20

約数和(自身を含む): 41019324

約数和(自身を除く): 20190508

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21341, 42682, 85364, 170728, 341456, 1301801, 2603602, 5207204, 10414408, 20828816]

約数ペア:

[(1, 20828816), (2, 10414408), (4, 5207204), (8, 2603602), (16, 1301801), (61, 341456), (122, 170728), (244, 85364), (488, 42682), (976, 21341)]