21685928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{937}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 44573760

約数和(自身を除く): 22887832

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 263, 526, 937, 1052, 1874, 2104, 2893, 3748, 5786, 7496, 10307, 11572, 20614, 23144, 41228, 82456, 246431, 492862, 985724, 1971448, 2710741, 5421482, 10842964, 21685928]

約数ペア:

[(1, 21685928), (2, 10842964), (4, 5421482), (8, 2710741), (11, 1971448), (22, 985724), (44, 492862), (88, 246431), (263, 82456), (526, 41228), (937, 23144), (1052, 20614), (1874, 11572), (2104, 10307), (2893, 7496), (3748, 5786)]