21176792

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1576

約数の個数: 64

約数和(自身を含む): 51475200

約数和(自身を除く): 30298408

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 133, 152, 182, 247, 266, 364, 494, 532, 728, 988, 1064, 1531, 1729, 1976, 3062, 3458, 6124, 6916, 10717, 12248, 13832, 19903, 21434, 29089, 39806, 42868, 58178, 79612, 85736, 116356, 139321, 159224, 203623, 232712, 278642, 378157, 407246, 557284, 756314, 814492, 1114568, 1512628, 1628984, 2647099, 3025256, 5294198, 10588396, 21176792]

約数ペア:

[(1, 21176792), (2, 10588396), (4, 5294198), (7, 3025256), (8, 2647099), (13, 1628984), (14, 1512628), (19, 1114568), (26, 814492), (28, 756314), (38, 557284), (52, 407246), (56, 378157), (76, 278642), (91, 232712), (104, 203623), (133, 159224), (152, 139321), (182, 116356), (247, 85736), (266, 79612), (364, 58178), (494, 42868), (532, 39806), (728, 29089), (988, 21434), (1064, 19903), (1531, 13832), (1729, 12248), (1976, 10717), (3062, 6916), (3458, 6124)]