18939525

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{2087}}^1$

素因数の和:2122

約数の個数: 36

約数和(自身を含む): 34435296

約数和(自身を除く): 15495771

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 165, 275, 363, 605, 825, 1815, 2087, 3025, 6261, 9075, 10435, 22957, 31305, 52175, 68871, 114785, 156525, 252527, 344355, 573925, 757581, 1262635, 1721775, 3787905, 6313175, 18939525]

約数ペア:

[(1, 18939525), (3, 6313175), (5, 3787905), (11, 1721775), (15, 1262635), (25, 757581), (33, 573925), (55, 344355), (75, 252527), (121, 156525), (165, 114785), (275, 68871), (363, 52175), (605, 31305), (825, 22957), (1815, 10435), (2087, 9075), (3025, 6261)]