21349407

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 10169313

約数列:

[1, 3, 19, 37, 53, 57, 111, 159, 191, 573, 703, 1007, 1961, 2109, 3021, 3629, 5883, 7067, 10123, 10887, 21201, 30369, 37259, 111777, 134273, 192337, 374551, 402819, 577011, 1123653, 7116469, 21349407]

約数ペア:

[(1, 21349407), (3, 7116469), (19, 1123653), (37, 577011), (53, 402819), (57, 374551), (111, 192337), (159, 134273), (191, 111777), (573, 37259), (703, 30369), (1007, 21201), (1961, 10887), (2109, 10123), (3021, 7067), (3629, 5883)]