18613215

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{839}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 16767585

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 85, 87, 145, 153, 255, 261, 435, 493, 765, 839, 1305, 1479, 2465, 2517, 4195, 4437, 7395, 7551, 12585, 14263, 22185, 24331, 37755, 42789, 71315, 72993, 121655, 128367, 213945, 218979, 364965, 413627, 641835, 1094895, 1240881, 2068135, 3722643, 6204405, 18613215]

約数ペア:

[(1, 18613215), (3, 6204405), (5, 3722643), (9, 2068135), (15, 1240881), (17, 1094895), (29, 641835), (45, 413627), (51, 364965), (85, 218979), (87, 213945), (145, 128367), (153, 121655), (255, 72993), (261, 71315), (435, 42789), (493, 37755), (765, 24331), (839, 22185), (1305, 14263), (1479, 12585), (2465, 7551), (2517, 7395), (4195, 4437)]