19056289

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 22680576

約数和(自身を除く): 3624287

約数列:

[1, 7, 31, 137, 217, 641, 959, 4247, 4487, 19871, 29729, 87817, 139097, 614719, 2722327, 19056289]

約数ペア:

[(1, 19056289), (7, 2722327), (31, 614719), (137, 139097), (217, 87817), (641, 29729), (959, 19871), (4247, 4487)]