21196807

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 23265792

約数和(自身を除く): 2068985

約数列:

[1, 17, 43, 107, 271, 731, 1819, 4601, 4607, 11653, 28997, 78217, 198101, 492949, 1246871, 21196807]

約数ペア:

[(1, 21196807), (17, 1246871), (43, 492949), (107, 198101), (271, 78217), (731, 28997), (1819, 11653), (4601, 4607)]