615681

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{691}}^1$

素因数の和:714

約数の個数: 20

約数和(自身を含む): 1004784

約数和(自身を除く): 389103

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 691, 891, 2073, 6219, 7601, 18657, 22803, 55971, 68409, 205227, 615681]

約数ペア:

[(1, 615681), (3, 205227), (9, 68409), (11, 55971), (27, 22803), (33, 18657), (81, 7601), (99, 6219), (297, 2073), (691, 891)]