18945285

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17789}}^1$

素因数の和:17868

約数の個数: 16

約数和(自身を含む): 30741120

約数和(自身を除く): 11795835

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 17789, 53367, 88945, 266835, 1263019, 3789057, 6315095, 18945285]

約数ペア:

[(1, 18945285), (3, 6315095), (5, 3789057), (15, 1263019), (71, 266835), (213, 88945), (355, 53367), (1065, 17789)]