21699004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 42378336

約数和(自身を除く): 20679332

約数列:

[1, 2, 4, 17, 34, 41, 43, 68, 82, 86, 164, 172, 181, 362, 697, 724, 731, 1394, 1462, 1763, 2788, 2924, 3077, 3526, 6154, 7052, 7421, 7783, 12308, 14842, 15566, 29684, 29971, 31132, 59942, 119884, 126157, 132311, 252314, 264622, 319103, 504628, 529244, 638206, 1276412, 5424751, 10849502, 21699004]

約数ペア:

[(1, 21699004), (2, 10849502), (4, 5424751), (17, 1276412), (34, 638206), (41, 529244), (43, 504628), (68, 319103), (82, 264622), (86, 252314), (164, 132311), (172, 126157), (181, 119884), (362, 59942), (697, 31132), (724, 29971), (731, 29684), (1394, 15566), (1462, 14842), (1763, 12308), (2788, 7783), (2924, 7421), (3077, 7052), (3526, 6154)]