19870668

素因数分解:

$2^2\times 3^2\times {\mathrm{551963}}^1$

素因数の和:551973

約数の個数: 18

約数和(自身を含む): 50228724

約数和(自身を除く): 30358056

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 551963, 1103926, 1655889, 2207852, 3311778, 4967667, 6623556, 9935334, 19870668]

約数ペア:

[(1, 19870668), (2, 9935334), (3, 6623556), (4, 4967667), (6, 3311778), (9, 2207852), (12, 1655889), (18, 1103926), (36, 551963)]