81906219

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{2113}}^1$

素因数の和:2251

約数の個数: 24

約数和(自身を含む): 122020080

約数和(自身を除く): 40113861

約数列:

[1, 3, 9, 59, 73, 177, 219, 531, 657, 2113, 4307, 6339, 12921, 19017, 38763, 124667, 154249, 374001, 462747, 1122003, 1388241, 9100691, 27302073, 81906219]

約数ペア:

[(1, 81906219), (3, 27302073), (9, 9100691), (59, 1388241), (73, 1122003), (177, 462747), (219, 374001), (531, 154249), (657, 124667), (2113, 38763), (4307, 19017), (6339, 12921)]