18665235

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2711}}^1$

素因数の和:2745

約数の個数: 40

約数和(自身を含む): 35440416

約数和(自身を除く): 16775181

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 2711, 6885, 8133, 13555, 24399, 40665, 46087, 73197, 121995, 138261, 219591, 230435, 365985, 414783, 691305, 1097955, 1244349, 2073915, 3733047, 6221745, 18665235]

約数ペア:

[(1, 18665235), (3, 6221745), (5, 3733047), (9, 2073915), (15, 1244349), (17, 1097955), (27, 691305), (45, 414783), (51, 365985), (81, 230435), (85, 219591), (135, 138261), (153, 121995), (255, 73197), (405, 46087), (459, 40665), (765, 24399), (1377, 13555), (2295, 8133), (2711, 6885)]