20198475

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8161}}^1$

素因数の和:8188

約数の個数: 36

約数和(自身を含む): 39471432

約数和(自身を除く): 19272957

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8161, 24483, 40805, 73449, 89771, 122415, 204025, 269313, 367245, 448855, 612075, 807939, 1346565, 1836225, 2244275, 4039695, 6732825, 20198475]

約数ペア:

[(1, 20198475), (3, 6732825), (5, 4039695), (9, 2244275), (11, 1836225), (15, 1346565), (25, 807939), (33, 612075), (45, 448855), (55, 367245), (75, 269313), (99, 204025), (165, 122415), (225, 89771), (275, 73449), (495, 40805), (825, 24483), (2475, 8161)]