20176263471

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{887}}^1\times {\mathrm{11903}}^1$

素因数の和:12820

約数の個数: 48

約数和(自身を含む): 33741840384

約数和(自身を除く): 13565576913

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 887, 1911, 2661, 6209, 11531, 11903, 18627, 34593, 35709, 43463, 80717, 83321, 130389, 154739, 242151, 249963, 464217, 565019, 583247, 1083173, 1695057, 1749741, 3249519, 7582211, 10557961, 22746633, 31673883, 73905727, 137253493, 221717181, 411760479, 517340089, 960774451, 1552020267, 2882323353, 6725421157, 20176263471]

約数ペア:

[(1, 20176263471), (3, 6725421157), (7, 2882323353), (13, 1552020267), (21, 960774451), (39, 517340089), (49, 411760479), (91, 221717181), (147, 137253493), (273, 73905727), (637, 31673883), (887, 22746633), (1911, 10557961), (2661, 7582211), (6209, 3249519), (11531, 1749741), (11903, 1695057), (18627, 1083173), (34593, 583247), (35709, 565019), (43463, 464217), (80717, 249963), (83321, 242151), (130389, 154739)]