121920885

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{15661}}^1$

素因数の和:15845

約数の個数: 24

約数和(自身を含む): 212564664

約数和(自身を除く): 90643779

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 7785, 15661, 46983, 78305, 140949, 234915, 704745, 2709353, 8128059, 13546765, 24384177, 40640295, 121920885]

約数ペア:

[(1, 121920885), (3, 40640295), (5, 24384177), (9, 13546765), (15, 8128059), (45, 2709353), (173, 704745), (519, 234915), (865, 140949), (1557, 78305), (2595, 46983), (7785, 15661)]