21865935

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 43803648

約数和(自身を除く): 21937713

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 83, 91, 105, 193, 195, 249, 273, 415, 455, 579, 581, 965, 1079, 1245, 1351, 1365, 1743, 2509, 2895, 2905, 3237, 4053, 5395, 6755, 7527, 7553, 8715, 12545, 16019, 16185, 17563, 20265, 22659, 37635, 37765, 48057, 52689, 80095, 87815, 112133, 113295, 208247, 240285, 263445, 336399, 560665, 624741, 1041235, 1457729, 1681995, 3123705, 4373187, 7288645, 21865935]

約数ペア:

[(1, 21865935), (3, 7288645), (5, 4373187), (7, 3123705), (13, 1681995), (15, 1457729), (21, 1041235), (35, 624741), (39, 560665), (65, 336399), (83, 263445), (91, 240285), (105, 208247), (193, 113295), (195, 112133), (249, 87815), (273, 80095), (415, 52689), (455, 48057), (579, 37765), (581, 37635), (965, 22659), (1079, 20265), (1245, 17563), (1351, 16185), (1365, 16019), (1743, 12545), (2509, 8715), (2895, 7553), (2905, 7527), (3237, 6755), (4053, 5395)]