21058772

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20327}}^1$

素因数の和:20375

約数の個数: 24

約数和(自身を含む): 43257984

約数和(自身を除く): 22199212

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20327, 40654, 81308, 142289, 284578, 569156, 752099, 1504198, 3008396, 5264693, 10529386, 21058772]

約数ペア:

[(1, 21058772), (2, 10529386), (4, 5264693), (7, 3008396), (14, 1504198), (28, 752099), (37, 569156), (74, 284578), (148, 142289), (259, 81308), (518, 40654), (1036, 20327)]