16817380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20509}}^1$

素因数の和:20559

約数の個数: 24

約数和(自身を含む): 36179640

約数和(自身を除く): 19362260

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20509, 41018, 82036, 102545, 205090, 410180, 840869, 1681738, 3363476, 4204345, 8408690, 16817380]

約数ペア:

[(1, 16817380), (2, 8408690), (4, 4204345), (5, 3363476), (10, 1681738), (20, 840869), (41, 410180), (82, 205090), (164, 102545), (205, 82036), (410, 41018), (820, 20509)]