19988046

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{9491}}^1$

素因数の和:9518

約数の個数: 40

約数和(自身を含む): 48238344

約数和(自身を除く): 28250298

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 9491, 18982, 28473, 56946, 85419, 123383, 170838, 246766, 256257, 370149, 512514, 740298, 768771, 1110447, 1537542, 2220894, 3331341, 6662682, 9994023, 19988046]

約数ペア:

[(1, 19988046), (2, 9994023), (3, 6662682), (6, 3331341), (9, 2220894), (13, 1537542), (18, 1110447), (26, 768771), (27, 740298), (39, 512514), (54, 370149), (78, 256257), (81, 246766), (117, 170838), (162, 123383), (234, 85419), (351, 56946), (702, 28473), (1053, 18982), (2106, 9491)]