17720901

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9421}}^1$

素因数の和:9457

約数の個数: 24

約数和(自身を含む): 29396640

約数和(自身を除く): 11675739

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 9421, 28263, 84789, 103631, 178999, 310893, 536997, 932679, 1610991, 1968989, 5906967, 17720901]

約数ペア:

[(1, 17720901), (3, 5906967), (9, 1968989), (11, 1610991), (19, 932679), (33, 536997), (57, 310893), (99, 178999), (171, 103631), (209, 84789), (627, 28263), (1881, 9421)]