20888835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{677}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 38955168

約数和(自身を除く): 18066333

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 121, 165, 187, 255, 363, 561, 605, 677, 935, 1815, 2031, 2057, 2805, 3385, 6171, 7447, 10155, 10285, 11509, 22341, 30855, 34527, 37235, 57545, 81917, 111705, 126599, 172635, 245751, 379797, 409585, 632995, 1228755, 1392589, 1898985, 4177767, 6962945, 20888835]

約数ペア:

[(1, 20888835), (3, 6962945), (5, 4177767), (11, 1898985), (15, 1392589), (17, 1228755), (33, 632995), (51, 409585), (55, 379797), (85, 245751), (121, 172635), (165, 126599), (187, 111705), (255, 81917), (363, 57545), (561, 37235), (605, 34527), (677, 30855), (935, 22341), (1815, 11509), (2031, 10285), (2057, 10155), (2805, 7447), (3385, 6171)]