18912257

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3407}}^1$

素因数の和:3488

約数の個数: 16

約数和(自身を含む): 23665152

約数和(自身を除く): 4752895

約数列:

[1, 7, 13, 61, 91, 427, 793, 3407, 5551, 23849, 44291, 207827, 310037, 1454789, 2701751, 18912257]

約数ペア:

[(1, 18912257), (7, 2701751), (13, 1454789), (61, 310037), (91, 207827), (427, 44291), (793, 23849), (3407, 5551)]