18555472

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89209}}^1$

素因数の和:89230

約数の個数: 20

約数和(自身を含む): 38717140

約数和(自身を除く): 20161668

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89209, 178418, 356836, 713672, 1159717, 1427344, 2319434, 4638868, 9277736, 18555472]

約数ペア:

[(1, 18555472), (2, 9277736), (4, 4638868), (8, 2319434), (13, 1427344), (16, 1159717), (26, 713672), (52, 356836), (104, 178418), (208, 89209)]