19704717

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4441}}^1$

素因数の和:4493

約数の個数: 24

約数和(自身を含む): 31182840

約数和(自身を除く): 11478123

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 493, 1479, 4437, 4441, 13323, 39969, 75497, 128789, 226491, 386367, 679473, 1159101, 2189413, 6568239, 19704717]

約数ペア:

[(1, 19704717), (3, 6568239), (9, 2189413), (17, 1159101), (29, 679473), (51, 386367), (87, 226491), (153, 128789), (261, 75497), (493, 39969), (1479, 13323), (4437, 4441)]