207940161

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 347719680

約数和(自身を除く): 139779519

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 97, 143, 209, 247, 263, 291, 429, 627, 741, 789, 1067, 1261, 1843, 2717, 2893, 3201, 3419, 3783, 4997, 5529, 8151, 8679, 10257, 13871, 14991, 20273, 23959, 25511, 37609, 41613, 54967, 60819, 64961, 71877, 76533, 112827, 164901, 194883, 263549, 280621, 331643, 484709, 714571, 790647, 841863, 994929, 1454127, 2143713, 3648073, 5331799, 6301217, 10944219, 15995397, 18903651, 69313387, 207940161]

約数ペア:

[(1, 207940161), (3, 69313387), (11, 18903651), (13, 15995397), (19, 10944219), (33, 6301217), (39, 5331799), (57, 3648073), (97, 2143713), (143, 1454127), (209, 994929), (247, 841863), (263, 790647), (291, 714571), (429, 484709), (627, 331643), (741, 280621), (789, 263549), (1067, 194883), (1261, 164901), (1843, 112827), (2717, 76533), (2893, 71877), (3201, 64961), (3419, 60819), (3783, 54967), (4997, 41613), (5529, 37609), (8151, 25511), (8679, 23959), (10257, 20273), (13871, 14991)]