20173878711

素因数分解:

$3^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{42509}}^1$

素因数の和:42568

約数の個数: 64

約数和(自身を含む): 35694796800

約数和(自身を除く): 15520918089

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 243, 279, 567, 651, 729, 837, 1701, 1953, 2187, 2511, 5103, 5859, 7533, 15309, 17577, 22599, 42509, 52731, 67797, 127527, 158193, 297563, 382581, 474579, 892689, 1147743, 1317779, 2678067, 3443229, 3953337, 8034201, 9224453, 10329687, 11860011, 24102603, 27673359, 30989061, 35580033, 72307809, 83020077, 92967183, 106740099, 216923427, 249060231, 320220297, 650770281, 747180693, 960660891, 2241542079, 2881982673, 6724626237, 20173878711]

約数ペア:

[(1, 20173878711), (3, 6724626237), (7, 2881982673), (9, 2241542079), (21, 960660891), (27, 747180693), (31, 650770281), (63, 320220297), (81, 249060231), (93, 216923427), (189, 106740099), (217, 92967183), (243, 83020077), (279, 72307809), (567, 35580033), (651, 30989061), (729, 27673359), (837, 24102603), (1701, 11860011), (1953, 10329687), (2187, 9224453), (2511, 8034201), (5103, 3953337), (5859, 3443229), (7533, 2678067), (15309, 1317779), (17577, 1147743), (22599, 892689), (42509, 474579), (52731, 382581), (67797, 297563), (127527, 158193)]