20557095

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2243}}^1$

素因数の和:2311

約数の個数: 32

約数和(自身を含む): 36191232

約数和(自身を除く): 15634137

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2243, 3055, 6729, 9165, 11215, 29159, 33645, 87477, 105421, 145795, 316263, 437385, 527105, 1370473, 1581315, 4111419, 6852365, 20557095]

約数ペア:

[(1, 20557095), (3, 6852365), (5, 4111419), (13, 1581315), (15, 1370473), (39, 527105), (47, 437385), (65, 316263), (141, 145795), (195, 105421), (235, 87477), (611, 33645), (705, 29159), (1833, 11215), (2243, 9165), (3055, 6729)]