20675193

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 16096647

約数列:

[1, 3, 7, 11, 21, 33, 37, 41, 59, 77, 111, 123, 177, 231, 259, 287, 407, 413, 451, 649, 777, 861, 1221, 1239, 1353, 1517, 1947, 2183, 2419, 2849, 3157, 4543, 4551, 6549, 7257, 8547, 9471, 10619, 13629, 15281, 16687, 16933, 24013, 26609, 31857, 45843, 50061, 50799, 72039, 79827, 89503, 116809, 168091, 186263, 268509, 350427, 504273, 558789, 626521, 984533, 1879563, 2953599, 6891731, 20675193]

約数ペア:

[(1, 20675193), (3, 6891731), (7, 2953599), (11, 1879563), (21, 984533), (33, 626521), (37, 558789), (41, 504273), (59, 350427), (77, 268509), (111, 186263), (123, 168091), (177, 116809), (231, 89503), (259, 79827), (287, 72039), (407, 50799), (413, 50061), (451, 45843), (649, 31857), (777, 26609), (861, 24013), (1221, 16933), (1239, 16687), (1353, 15281), (1517, 13629), (1947, 10619), (2183, 9471), (2419, 8547), (2849, 7257), (3157, 6549), (4543, 4551)]