16980453

素因数分解:

$3^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{659}}^1$

素因数の和:1081

約数の個数: 24

約数和(自身を含む): 28142400

約数和(自身を除く): 11161947

約数列:

[1, 3, 7, 9, 21, 63, 409, 659, 1227, 1977, 2863, 3681, 4613, 5931, 8589, 13839, 25767, 41517, 269531, 808593, 1886717, 2425779, 5660151, 16980453]

約数ペア:

[(1, 16980453), (3, 5660151), (7, 2425779), (9, 1886717), (21, 808593), (63, 269531), (409, 41517), (659, 25767), (1227, 13839), (1977, 8589), (2863, 5931), (3681, 4613)]