16808673

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 27289600

約数和(自身を除く): 10480927

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 399, 409, 721, 1227, 1957, 2163, 2863, 5871, 7771, 8589, 13699, 23313, 41097, 42127, 54397, 126381, 163191, 294889, 800413, 884667, 2401239, 5602891, 16808673]

約数ペア:

[(1, 16808673), (3, 5602891), (7, 2401239), (19, 884667), (21, 800413), (57, 294889), (103, 163191), (133, 126381), (309, 54397), (399, 42127), (409, 41097), (721, 23313), (1227, 13699), (1957, 8589), (2163, 7771), (2863, 5871)]