18666459

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 33808320

約数和(自身を除く): 15141861

約数列:

[1, 3, 7, 9, 17, 21, 29, 51, 63, 87, 119, 153, 203, 261, 357, 493, 601, 609, 1071, 1479, 1803, 1827, 3451, 4207, 4437, 5409, 10217, 10353, 12621, 17429, 30651, 31059, 37863, 52287, 71519, 91953, 122003, 156861, 214557, 296293, 366009, 643671, 888879, 1098027, 2074051, 2666637, 6222153, 18666459]

約数ペア:

[(1, 18666459), (3, 6222153), (7, 2666637), (9, 2074051), (17, 1098027), (21, 888879), (29, 643671), (51, 366009), (63, 296293), (87, 214557), (119, 156861), (153, 122003), (203, 91953), (261, 71519), (357, 52287), (493, 37863), (601, 31059), (609, 30651), (1071, 17429), (1479, 12621), (1803, 10353), (1827, 10217), (3451, 5409), (4207, 4437)]