21882371

素因数分解:

$7^3\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:639

約数の個数: 16

約数和(自身を含む): 25766400

約数和(自身を除く): 3884029

約数列:

[1, 7, 49, 131, 343, 487, 917, 3409, 6419, 23863, 44933, 63797, 167041, 446579, 3126053, 21882371]

約数ペア:

[(1, 21882371), (7, 3126053), (49, 446579), (131, 167041), (343, 63797), (487, 44933), (917, 23863), (3409, 6419)]