19995344

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29063}}^1$

素因数の和:29114

約数の個数: 20

約数和(自身を含む): 39643296

約数和(自身を除く): 19647952

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29063, 58126, 116252, 232504, 465008, 1249709, 2499418, 4998836, 9997672, 19995344]

約数ペア:

[(1, 19995344), (2, 9997672), (4, 4998836), (8, 2499418), (16, 1249709), (43, 465008), (86, 232504), (172, 116252), (344, 58126), (688, 29063)]