21294874

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1\times {\mathrm{643}}^1$

素因数の和:1245

約数の個数: 16

約数和(自身を含む): 33153120

約数和(自身を除く): 11858246

約数列:

[1, 2, 29, 58, 571, 643, 1142, 1286, 16559, 18647, 33118, 37294, 367153, 734306, 10647437, 21294874]

約数ペア:

[(1, 21294874), (2, 10647437), (29, 734306), (58, 367153), (571, 37294), (643, 33118), (1142, 18647), (1286, 16559)]