66643521

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{613}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 105627648

約数和(自身を除く): 38984127

約数列:

[1, 3, 7, 21, 31, 93, 167, 217, 501, 613, 651, 1169, 1839, 3507, 4291, 5177, 12873, 15531, 19003, 36239, 57009, 102371, 108717, 133021, 307113, 399063, 716597, 2149791, 3173501, 9520503, 22214507, 66643521]

約数ペア:

[(1, 66643521), (3, 22214507), (7, 9520503), (21, 3173501), (31, 2149791), (93, 716597), (167, 399063), (217, 307113), (501, 133021), (613, 108717), (651, 102371), (1169, 57009), (1839, 36239), (3507, 19003), (4291, 15531), (5177, 12873)]