19538475

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{2153}}^1$

素因数の和:2188

約数の個数: 36

約数和(自身を含む): 35523768

約数和(自身を除く): 15985293

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 165, 275, 363, 605, 825, 1815, 2153, 3025, 6459, 9075, 10765, 23683, 32295, 53825, 71049, 118415, 161475, 260513, 355245, 592075, 781539, 1302565, 1776225, 3907695, 6512825, 19538475]

約数ペア:

[(1, 19538475), (3, 6512825), (5, 3907695), (11, 1776225), (15, 1302565), (25, 781539), (33, 592075), (55, 355245), (75, 260513), (121, 161475), (165, 118415), (275, 71049), (363, 53825), (605, 32295), (825, 23683), (1815, 10765), (2153, 9075), (3025, 6459)]