19810658

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{26699}}^1$

素因数の和:26761

約数の個数: 16

約数和(自身を含む): 34603200

約数和(自身を除く): 14792542

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 26699, 53398, 186893, 373786, 1415047, 2830094, 9905329, 19810658]

約数ペア:

[(1, 19810658), (2, 9905329), (7, 2830094), (14, 1415047), (53, 373786), (106, 186893), (371, 53398), (742, 26699)]