21773648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104681}}^1$

素因数の和:104702

約数の個数: 20

約数和(自身を含む): 45431988

約数和(自身を除く): 23658340

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104681, 209362, 418724, 837448, 1360853, 1674896, 2721706, 5443412, 10886824, 21773648]

約数ペア:

[(1, 21773648), (2, 10886824), (4, 5443412), (8, 2721706), (13, 1674896), (16, 1360853), (26, 837448), (52, 418724), (104, 209362), (208, 104681)]