68940207

素因数分解:

$3^3\times 7^2\times {\mathrm{107}}^1\times {\mathrm{487}}^1$

素因数の和:617

約数の個数: 48

約数和(自身を含む): 120165120

約数和(自身を除く): 51224913

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 107, 147, 189, 321, 441, 487, 749, 963, 1323, 1461, 2247, 2889, 3409, 4383, 5243, 6741, 10227, 13149, 15729, 20223, 23863, 30681, 47187, 52109, 71589, 92043, 141561, 156327, 214767, 364763, 468981, 644301, 1094289, 1406943, 2553341, 3282867, 7660023, 9848601, 22980069, 68940207]

約数ペア:

[(1, 68940207), (3, 22980069), (7, 9848601), (9, 7660023), (21, 3282867), (27, 2553341), (49, 1406943), (63, 1094289), (107, 644301), (147, 468981), (189, 364763), (321, 214767), (441, 156327), (487, 141561), (749, 92043), (963, 71589), (1323, 52109), (1461, 47187), (2247, 30681), (2889, 23863), (3409, 20223), (4383, 15729), (5243, 13149), (6741, 10227)]