21170214

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{569}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 51710400

約数和(自身を除く): 30540186

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 53, 54, 78, 106, 117, 159, 234, 318, 351, 477, 569, 689, 702, 954, 1138, 1378, 1431, 1707, 2067, 2862, 3414, 4134, 5121, 6201, 7397, 10242, 12402, 14794, 15363, 18603, 22191, 30157, 30726, 37206, 44382, 60314, 66573, 90471, 133146, 180942, 199719, 271413, 392041, 399438, 542826, 784082, 814239, 1176123, 1628478, 2352246, 3528369, 7056738, 10585107, 21170214]

約数ペア:

[(1, 21170214), (2, 10585107), (3, 7056738), (6, 3528369), (9, 2352246), (13, 1628478), (18, 1176123), (26, 814239), (27, 784082), (39, 542826), (53, 399438), (54, 392041), (78, 271413), (106, 199719), (117, 180942), (159, 133146), (234, 90471), (318, 66573), (351, 60314), (477, 44382), (569, 37206), (689, 30726), (702, 30157), (954, 22191), (1138, 18603), (1378, 15363), (1431, 14794), (1707, 12402), (2067, 10242), (2862, 7397), (3414, 6201), (4134, 5121)]