20991776

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{50461}}^1$

素因数の和:50484

約数の個数: 24

約数和(自身を含む): 44507484

約数和(自身を除く): 23515708

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 50461, 100922, 201844, 403688, 655993, 807376, 1311986, 1614752, 2623972, 5247944, 10495888, 20991776]

約数ペア:

[(1, 20991776), (2, 10495888), (4, 5247944), (8, 2623972), (13, 1614752), (16, 1311986), (26, 807376), (32, 655993), (52, 403688), (104, 201844), (208, 100922), (416, 50461)]