421737981

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 696729600

約数和(自身を除く): 274991619

約数列:

[1, 3, 7, 21, 29, 31, 87, 89, 93, 203, 217, 251, 267, 609, 623, 651, 753, 899, 1757, 1869, 2581, 2697, 2759, 5271, 6293, 7279, 7743, 7781, 8277, 18067, 18879, 19313, 21837, 22339, 23343, 50953, 54201, 54467, 57939, 67017, 80011, 152859, 156373, 163401, 225649, 240033, 469119, 560077, 647831, 676947, 692509, 1579543, 1680231, 1943493, 2077527, 4534817, 4738629, 4847563, 13604451, 14542689, 20082761, 60248283, 140579327, 421737981]

約数ペア:

[(1, 421737981), (3, 140579327), (7, 60248283), (21, 20082761), (29, 14542689), (31, 13604451), (87, 4847563), (89, 4738629), (93, 4534817), (203, 2077527), (217, 1943493), (251, 1680231), (267, 1579543), (609, 692509), (623, 676947), (651, 647831), (753, 560077), (899, 469119), (1757, 240033), (1869, 225649), (2581, 163401), (2697, 156373), (2759, 152859), (5271, 80011), (6293, 67017), (7279, 57939), (7743, 54467), (7781, 54201), (8277, 50953), (18067, 23343), (18879, 22339), (19313, 21837)]