20804849828637

素因数分解:

$3^1\times 7^3\times {\mathrm{227}}^1\times {\mathrm{409}}^1\times {\mathrm{217771}}^1$

素因数の和:218431

約数の個数: 64

約数和(自身を含む): 32571722496000

約数和(自身を除く): 11766872667363

約数列:

[1, 3, 7, 21, 49, 147, 227, 343, 409, 681, 1029, 1227, 1589, 2863, 4767, 8589, 11123, 20041, 33369, 60123, 77861, 92843, 140287, 217771, 233583, 278529, 420861, 649901, 653313, 1524397, 1949703, 4549307, 4573191, 10670779, 13647921, 31845149, 32012337, 49434017, 74695453, 89068339, 95535447, 148302051, 224086359, 267205017, 346038119, 623478373, 1038114357, 1870435119, 2422266833, 4364348611, 7266800499, 13093045833, 16955867831, 20218512953, 30550440277, 50867603493, 60655538859, 91651320831, 141529590671, 424588772013, 990707134697, 2972121404091, 6934949942879, 20804849828637]

約数ペア:

[(1, 20804849828637), (3, 6934949942879), (7, 2972121404091), (21, 990707134697), (49, 424588772013), (147, 141529590671), (227, 91651320831), (343, 60655538859), (409, 50867603493), (681, 30550440277), (1029, 20218512953), (1227, 16955867831), (1589, 13093045833), (2863, 7266800499), (4767, 4364348611), (8589, 2422266833), (11123, 1870435119), (20041, 1038114357), (33369, 623478373), (60123, 346038119), (77861, 267205017), (92843, 224086359), (140287, 148302051), (217771, 95535447), (233583, 89068339), (278529, 74695453), (420861, 49434017), (649901, 32012337), (653313, 31845149), (1524397, 13647921), (1949703, 10670779), (4549307, 4573191)]