19813743

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1511}}^1$

素因数の和:1595

約数の個数: 24

約数和(自身を含む): 30191616

約数和(自身を除く): 10377873

約数列:

[1, 3, 9, 31, 47, 93, 141, 279, 423, 1457, 1511, 4371, 4533, 13113, 13599, 46841, 71017, 140523, 213051, 421569, 639153, 2201527, 6604581, 19813743]

約数ペア:

[(1, 19813743), (3, 6604581), (9, 2201527), (31, 639153), (47, 421569), (93, 213051), (141, 140523), (279, 71017), (423, 46841), (1457, 13599), (1511, 13113), (4371, 4533)]