20188203

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2663}}^1$

素因数の和:2711

約数の個数: 24

約数和(自身を含む): 32479488

約数和(自身を除く): 12291285

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 2663, 7581, 7989, 18641, 50597, 55923, 151791, 354179, 961343, 1062537, 2884029, 6729401, 20188203]

約数ペア:

[(1, 20188203), (3, 6729401), (7, 2884029), (19, 1062537), (21, 961343), (57, 354179), (133, 151791), (361, 55923), (399, 50597), (1083, 18641), (2527, 7989), (2663, 7581)]