18997432

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3407}}^1$

素因数の和:3471

約数の個数: 32

約数和(自身を含む): 38646720

約数和(自身を除く): 19649288

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3407, 5576, 6814, 13628, 27256, 57919, 115838, 139687, 231676, 279374, 463352, 558748, 1117496, 2374679, 4749358, 9498716, 18997432]

約数ペア:

[(1, 18997432), (2, 9498716), (4, 4749358), (8, 2374679), (17, 1117496), (34, 558748), (41, 463352), (68, 279374), (82, 231676), (136, 139687), (164, 115838), (328, 57919), (697, 27256), (1394, 13628), (2788, 6814), (3407, 5576)]