21000688794

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^3\times {\mathrm{39163}}^1$

素因数の和:39264

約数の個数: 48

約数和(自身を含む): 47019358464

約数和(自身を除く): 26018669670

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 961, 1922, 2883, 5766, 8649, 17298, 29791, 39163, 59582, 78326, 89373, 117489, 178746, 234978, 268119, 352467, 536238, 704934, 1214053, 2428106, 3642159, 7284318, 10926477, 21852954, 37635643, 75271286, 112906929, 225813858, 338720787, 677441574, 1166704933, 2333409866, 3500114799, 7000229598, 10500344397, 21000688794]

約数ペア:

[(1, 21000688794), (2, 10500344397), (3, 7000229598), (6, 3500114799), (9, 2333409866), (18, 1166704933), (31, 677441574), (62, 338720787), (93, 225813858), (186, 112906929), (279, 75271286), (558, 37635643), (961, 21852954), (1922, 10926477), (2883, 7284318), (5766, 3642159), (8649, 2428106), (17298, 1214053), (29791, 704934), (39163, 536238), (59582, 352467), (78326, 268119), (89373, 234978), (117489, 178746)]