209660438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{12541}}^1$

素因数の和:13199

約数の個数: 16

約数和(自身を含む): 339236016

約数和(自身を除く): 129575578

約数列:

[1, 2, 13, 26, 643, 1286, 8359, 12541, 16718, 25082, 163033, 326066, 8063863, 16127726, 104830219, 209660438]

約数ペア:

[(1, 209660438), (2, 104830219), (13, 16127726), (26, 8063863), (643, 326066), (1286, 163033), (8359, 25082), (12541, 16718)]