209725857

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{111497}}^1$

素因数の和:111533

約数の個数: 24

約数和(自身を含む): 347873760

約数和(自身を除く): 138147903

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 111497, 334491, 1003473, 1226467, 2118443, 3679401, 6355329, 11038203, 19065987, 23302873, 69908619, 209725857]

約数ペア:

[(1, 209725857), (3, 69908619), (9, 23302873), (11, 19065987), (19, 11038203), (33, 6355329), (57, 3679401), (99, 2118443), (171, 1226467), (209, 1003473), (627, 334491), (1881, 111497)]