399150081

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 677214720

約数和(自身を除く): 278064639

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 101, 121, 171, 191, 209, 303, 363, 573, 627, 909, 1089, 1111, 1719, 1881, 1919, 2101, 2299, 3333, 3629, 5757, 6303, 6897, 9999, 10887, 12221, 17271, 18909, 19291, 20691, 21109, 23111, 32661, 36663, 39919, 57873, 63327, 69333, 109989, 119757, 173619, 189981, 207999, 212201, 232199, 359271, 366529, 439109, 636603, 696597, 1099587, 1317327, 1909809, 2089791, 2334211, 3298761, 3951981, 4031819, 7002633, 12095457, 21007899, 36286371, 44350009, 133050027, 399150081]

約数ペア:

[(1, 399150081), (3, 133050027), (9, 44350009), (11, 36286371), (19, 21007899), (33, 12095457), (57, 7002633), (99, 4031819), (101, 3951981), (121, 3298761), (171, 2334211), (191, 2089791), (209, 1909809), (303, 1317327), (363, 1099587), (573, 696597), (627, 636603), (909, 439109), (1089, 366529), (1111, 359271), (1719, 232199), (1881, 212201), (1919, 207999), (2101, 189981), (2299, 173619), (3333, 119757), (3629, 109989), (5757, 69333), (6303, 63327), (6897, 57873), (9999, 39919), (10887, 36663), (12221, 32661), (17271, 23111), (18909, 21109), (19291, 20691)]