21302666

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 21828214

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 79, 103, 119, 154, 158, 187, 206, 238, 374, 553, 721, 869, 1106, 1133, 1309, 1343, 1442, 1738, 1751, 2266, 2618, 2686, 3502, 6083, 7931, 8137, 9401, 12166, 12257, 14773, 15862, 16274, 18802, 19261, 24514, 29546, 38522, 56959, 89507, 103411, 113918, 134827, 138329, 179014, 206822, 269654, 276658, 626549, 968303, 1253098, 1521619, 1936606, 3043238, 10651333, 21302666]

約数ペア:

[(1, 21302666), (2, 10651333), (7, 3043238), (11, 1936606), (14, 1521619), (17, 1253098), (22, 968303), (34, 626549), (77, 276658), (79, 269654), (103, 206822), (119, 179014), (154, 138329), (158, 134827), (187, 113918), (206, 103411), (238, 89507), (374, 56959), (553, 38522), (721, 29546), (869, 24514), (1106, 19261), (1133, 18802), (1309, 16274), (1343, 15862), (1442, 14773), (1738, 12257), (1751, 12166), (2266, 9401), (2618, 8137), (2686, 7931), (3502, 6083)]