81812848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{393331}}^1$

素因数の和:393352

約数の個数: 20

約数和(自身を含む): 170706088

約数和(自身を除く): 88893240

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 393331, 786662, 1573324, 3146648, 5113303, 6293296, 10226606, 20453212, 40906424, 81812848]

約数ペア:

[(1, 81812848), (2, 40906424), (4, 20453212), (8, 10226606), (13, 6293296), (16, 5113303), (26, 3146648), (52, 1573324), (104, 786662), (208, 393331)]