21986742

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 45440640

約数和(自身を除く): 23453898

約数列:

[1, 2, 3, 6, 41, 82, 123, 139, 246, 278, 417, 643, 834, 1286, 1929, 3858, 5699, 11398, 17097, 26363, 34194, 52726, 79089, 89377, 158178, 178754, 268131, 536262, 3664457, 7328914, 10993371, 21986742]

約数ペア:

[(1, 21986742), (2, 10993371), (3, 7328914), (6, 3664457), (41, 536262), (82, 268131), (123, 178754), (139, 158178), (246, 89377), (278, 79089), (417, 52726), (643, 34194), (834, 26363), (1286, 17097), (1929, 11398), (3858, 5699)]