21755295

素因数分解:

$3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2671}}^1$

素因数の和:2863

約数の個数: 24

約数和(自身を含む): 37931712

約数和(自身を除く): 16176417

約数列:

[1, 3, 5, 9, 15, 45, 181, 543, 905, 1629, 2671, 2715, 8013, 8145, 13355, 24039, 40065, 120195, 483451, 1450353, 2417255, 4351059, 7251765, 21755295]

約数ペア:

[(1, 21755295), (3, 7251765), (5, 4351059), (9, 2417255), (15, 1450353), (45, 483451), (181, 120195), (543, 40065), (905, 24039), (1629, 13355), (2671, 8145), (2715, 8013)]