20907370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2677}}^1$

素因数の和:2766

約数の個数: 32

約数和(自身を含む): 41648256

約数和(自身を除く): 20740886

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 2677, 3905, 5354, 7810, 13385, 26770, 29447, 58894, 147235, 190067, 294470, 380134, 950335, 1900670, 2090737, 4181474, 10453685, 20907370]

約数ペア:

[(1, 20907370), (2, 10453685), (5, 4181474), (10, 2090737), (11, 1900670), (22, 950335), (55, 380134), (71, 294470), (110, 190067), (142, 147235), (355, 58894), (710, 29447), (781, 26770), (1562, 13385), (2677, 7810), (3905, 5354)]