20945632

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 44135280

約数和(自身を除く): 23189648

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 139, 272, 277, 278, 544, 554, 556, 1108, 1112, 2216, 2224, 2363, 4432, 4448, 4709, 4726, 8864, 9418, 9452, 18836, 18904, 37672, 37808, 38503, 75344, 75616, 77006, 150688, 154012, 308024, 616048, 654551, 1232096, 1309102, 2618204, 5236408, 10472816, 20945632]

約数ペア:

[(1, 20945632), (2, 10472816), (4, 5236408), (8, 2618204), (16, 1309102), (17, 1232096), (32, 654551), (34, 616048), (68, 308024), (136, 154012), (139, 150688), (272, 77006), (277, 75616), (278, 75344), (544, 38503), (554, 37808), (556, 37672), (1108, 18904), (1112, 18836), (2216, 9452), (2224, 9418), (2363, 8864), (4432, 4726), (4448, 4709)]