20281287

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{1201}}^1$

素因数の和:1650

約数の個数: 16

約数和(自身を含む): 29213408

約数和(自身を除く): 8932121

約数列:

[1, 3, 13, 39, 433, 1201, 1299, 3603, 5629, 15613, 16887, 46839, 520033, 1560099, 6760429, 20281287]

約数ペア:

[(1, 20281287), (3, 6760429), (13, 1560099), (39, 520033), (433, 46839), (1201, 16887), (1299, 15613), (3603, 5629)]