20854539153

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{24203}}^1$

素因数の和:24363

約数の個数: 64

約数和(自身を含む): 36433797120

約数和(自身を除く): 15579257967

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 97, 141, 189, 291, 329, 423, 679, 873, 987, 1269, 2037, 2619, 2961, 4559, 6111, 8883, 13677, 18333, 24203, 31913, 41031, 72609, 95739, 123093, 169421, 217827, 287217, 508263, 653481, 861651, 1137541, 1524789, 2347691, 3412623, 4574367, 7043073, 7962787, 10237869, 16433837, 21129219, 23888361, 30713607, 49301511, 63387657, 71665083, 110341477, 147904533, 214995249, 331024431, 443713599, 772390339, 993073293, 2317171017, 2979219879, 6951513051, 20854539153]

約数ペア:

[(1, 20854539153), (3, 6951513051), (7, 2979219879), (9, 2317171017), (21, 993073293), (27, 772390339), (47, 443713599), (63, 331024431), (97, 214995249), (141, 147904533), (189, 110341477), (291, 71665083), (329, 63387657), (423, 49301511), (679, 30713607), (873, 23888361), (987, 21129219), (1269, 16433837), (2037, 10237869), (2619, 7962787), (2961, 7043073), (4559, 4574367), (6111, 3412623), (8883, 2347691), (13677, 1524789), (18333, 1137541), (24203, 861651), (31913, 653481), (41031, 508263), (72609, 287217), (95739, 217827), (123093, 169421)]