21371872

素因数分解:

$2^5\times {\mathrm{523}}^1\times {\mathrm{1277}}^1$

素因数の和:1810

約数の個数: 24

約数和(自身を含む): 42189336

約数和(自身を除く): 20817464

約数列:

[1, 2, 4, 8, 16, 32, 523, 1046, 1277, 2092, 2554, 4184, 5108, 8368, 10216, 16736, 20432, 40864, 667871, 1335742, 2671484, 5342968, 10685936, 21371872]

約数ペア:

[(1, 21371872), (2, 10685936), (4, 5342968), (8, 2671484), (16, 1335742), (32, 667871), (523, 40864), (1046, 20432), (1277, 16736), (2092, 10216), (2554, 8368), (4184, 5108)]