20968803

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4421}}^1$

素因数の和:4475

約数の個数: 24

約数和(自身を含む): 33111936

約数和(自身を除く): 12143133

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 279, 527, 1581, 4421, 4743, 13263, 39789, 75157, 137051, 225471, 411153, 676413, 1233459, 2329867, 6989601, 20968803]

約数ペア:

[(1, 20968803), (3, 6989601), (9, 2329867), (17, 1233459), (31, 676413), (51, 411153), (93, 225471), (153, 137051), (279, 75157), (527, 39789), (1581, 13263), (4421, 4743)]