21194614

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 41817600

約数和(自身を除く): 20622986

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 43, 86, 109, 119, 133, 218, 238, 266, 301, 323, 602, 646, 731, 763, 817, 1462, 1526, 1634, 1853, 2071, 2261, 3706, 4142, 4522, 4687, 5117, 5719, 9374, 10234, 11438, 12971, 13889, 14497, 25942, 27778, 28994, 32809, 35207, 65618, 70414, 79679, 89053, 97223, 159358, 178106, 194446, 246449, 492898, 557753, 623371, 1115506, 1246742, 1513901, 3027802, 10597307, 21194614]

約数ペア:

[(1, 21194614), (2, 10597307), (7, 3027802), (14, 1513901), (17, 1246742), (19, 1115506), (34, 623371), (38, 557753), (43, 492898), (86, 246449), (109, 194446), (119, 178106), (133, 159358), (218, 97223), (238, 89053), (266, 79679), (301, 70414), (323, 65618), (602, 35207), (646, 32809), (731, 28994), (763, 27778), (817, 25942), (1462, 14497), (1526, 13889), (1634, 12971), (1853, 11438), (2071, 10234), (2261, 9374), (3706, 5719), (4142, 5117), (4522, 4687)]