16861689

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 27646080

約数和(自身を除く): 10784391

約数列:

[1, 3, 9, 13, 27, 39, 67, 81, 117, 201, 239, 351, 603, 717, 871, 1053, 1809, 2151, 2613, 3107, 5427, 6453, 7839, 9321, 16013, 19359, 23517, 27963, 48039, 70551, 83889, 144117, 208169, 251667, 432351, 624507, 1297053, 1873521, 5620563, 16861689]

約数ペア:

[(1, 16861689), (3, 5620563), (9, 1873521), (13, 1297053), (27, 624507), (39, 432351), (67, 251667), (81, 208169), (117, 144117), (201, 83889), (239, 70551), (351, 48039), (603, 27963), (717, 23517), (871, 19359), (1053, 16013), (1809, 9321), (2151, 7839), (2613, 6453), (3107, 5427)]