21742578

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8447}}^1$

素因数の和:8479

約数の個数: 48

約数和(自身を含む): 55351296

約数和(自身を除く): 33608718

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 66, 78, 99, 117, 143, 198, 234, 286, 429, 858, 1287, 2574, 8447, 16894, 25341, 50682, 76023, 92917, 109811, 152046, 185834, 219622, 278751, 329433, 557502, 658866, 836253, 988299, 1207921, 1672506, 1976598, 2415842, 3623763, 7247526, 10871289, 21742578]

約数ペア:

[(1, 21742578), (2, 10871289), (3, 7247526), (6, 3623763), (9, 2415842), (11, 1976598), (13, 1672506), (18, 1207921), (22, 988299), (26, 836253), (33, 658866), (39, 557502), (66, 329433), (78, 278751), (99, 219622), (117, 185834), (143, 152046), (198, 109811), (234, 92917), (286, 76023), (429, 50682), (858, 25341), (1287, 16894), (2574, 8447)]