20738691

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1523}}^1$

素因数の和:1635

約数の個数: 24

約数和(自身を含む): 32095440

約数和(自身を除く): 11356749

約数列:

[1, 3, 9, 17, 51, 89, 153, 267, 801, 1513, 1523, 4539, 4569, 13617, 13707, 25891, 77673, 135547, 233019, 406641, 1219923, 2304299, 6912897, 20738691]

約数ペア:

[(1, 20738691), (3, 6912897), (9, 2304299), (17, 1219923), (51, 406641), (89, 233019), (153, 135547), (267, 77673), (801, 25891), (1513, 13707), (1523, 13617), (4539, 4569)]