17820894

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 44384256

約数和(自身を除く): 26563362

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 127, 182, 254, 257, 273, 381, 514, 546, 762, 771, 889, 1542, 1651, 1778, 1799, 2667, 3302, 3341, 3598, 4953, 5334, 5397, 6682, 9906, 10023, 10794, 11557, 20046, 23114, 23387, 32639, 34671, 46774, 65278, 69342, 70161, 97917, 140322, 195834, 228473, 424307, 456946, 685419, 848614, 1272921, 1370838, 2545842, 2970149, 5940298, 8910447, 17820894]

約数ペア:

[(1, 17820894), (2, 8910447), (3, 5940298), (6, 2970149), (7, 2545842), (13, 1370838), (14, 1272921), (21, 848614), (26, 685419), (39, 456946), (42, 424307), (78, 228473), (91, 195834), (127, 140322), (182, 97917), (254, 70161), (257, 69342), (273, 65278), (381, 46774), (514, 34671), (546, 32639), (762, 23387), (771, 23114), (889, 20046), (1542, 11557), (1651, 10794), (1778, 10023), (1799, 9906), (2667, 6682), (3302, 5397), (3341, 5334), (3598, 4953)]