20978692

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24169}}^1$

素因数の和:24211

約数の個数: 24

約数和(自身を含む): 43312640

約数和(自身を除く): 22333948

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24169, 48338, 96676, 169183, 338366, 676732, 749239, 1498478, 2996956, 5244673, 10489346, 20978692]

約数ペア:

[(1, 20978692), (2, 10489346), (4, 5244673), (7, 2996956), (14, 1498478), (28, 749239), (31, 676732), (62, 338366), (124, 169183), (217, 96676), (434, 48338), (868, 24169)]