21593840

素因数分解:

$2^4\times 5^1\times {\mathrm{269923}}^1$

素因数の和:269936

約数の個数: 20

約数和(自身を含む): 50205864

約数和(自身を除く): 28612024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269923, 539846, 1079692, 1349615, 2159384, 2699230, 4318768, 5398460, 10796920, 21593840]

約数ペア:

[(1, 21593840), (2, 10796920), (4, 5398460), (5, 4318768), (8, 2699230), (10, 2159384), (16, 1349615), (20, 1079692), (40, 539846), (80, 269923)]