20169765

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5821}}^1$

素因数の和:5850

約数の個数: 48

約数和(自身を含む): 43595136

約数和(自身を除く): 23425371

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5821, 17463, 29105, 40747, 52389, 64031, 87315, 122241, 192093, 203735, 261945, 320155, 366723, 448217, 576279, 611205, 960465, 1344651, 1833615, 2241085, 2881395, 4033953, 6723255, 20169765]

約数ペア:

[(1, 20169765), (3, 6723255), (5, 4033953), (7, 2881395), (9, 2241085), (11, 1833615), (15, 1344651), (21, 960465), (33, 611205), (35, 576279), (45, 448217), (55, 366723), (63, 320155), (77, 261945), (99, 203735), (105, 192093), (165, 122241), (231, 87315), (315, 64031), (385, 52389), (495, 40747), (693, 29105), (1155, 17463), (3465, 5821)]