68335281

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 118085760

約数和(自身を除く): 49750479

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 113, 203, 261, 331, 339, 609, 791, 993, 1017, 1827, 2317, 2373, 2979, 3277, 6951, 7119, 9599, 9831, 20853, 22939, 28797, 29493, 37403, 67193, 68817, 86391, 112209, 201579, 206451, 261821, 336627, 604737, 785463, 1084687, 2356389, 3254061, 7592809, 9762183, 22778427, 68335281]

約数ペア:

[(1, 68335281), (3, 22778427), (7, 9762183), (9, 7592809), (21, 3254061), (29, 2356389), (63, 1084687), (87, 785463), (113, 604737), (203, 336627), (261, 261821), (331, 206451), (339, 201579), (609, 112209), (791, 86391), (993, 68817), (1017, 67193), (1827, 37403), (2317, 29493), (2373, 28797), (2979, 22939), (3277, 20853), (6951, 9831), (7119, 9599)]