19974801

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1123}}^1$

素因数の和:1162

約数の個数: 36

約数和(自身を含む): 34084176

約数和(自身を除く): 14109375

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 121, 147, 231, 363, 539, 847, 1123, 1617, 2541, 3369, 5929, 7861, 12353, 17787, 23583, 37059, 55027, 86471, 135883, 165081, 259413, 407649, 605297, 951181, 1815891, 2853543, 6658267, 19974801]

約数ペア:

[(1, 19974801), (3, 6658267), (7, 2853543), (11, 1815891), (21, 951181), (33, 605297), (49, 407649), (77, 259413), (121, 165081), (147, 135883), (231, 86471), (363, 55027), (539, 37059), (847, 23583), (1123, 17787), (1617, 12353), (2541, 7861), (3369, 5929)]