19991672

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{86171}}^1$

素因数の和:86206

約数の個数: 16

約数和(自身を含む): 38777400

約数和(自身を除く): 18785728

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 86171, 172342, 344684, 689368, 2498959, 4997918, 9995836, 19991672]

約数ペア:

[(1, 19991672), (2, 9995836), (4, 4997918), (8, 2498959), (29, 689368), (58, 344684), (116, 172342), (232, 86171)]