21229648

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120623}}^1$

素因数の和:120642

約数の個数: 20

約数和(自身を含む): 44872128

約数和(自身を除く): 23642480

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120623, 241246, 482492, 964984, 1326853, 1929968, 2653706, 5307412, 10614824, 21229648]

約数ペア:

[(1, 21229648), (2, 10614824), (4, 5307412), (8, 2653706), (11, 1929968), (16, 1326853), (22, 964984), (44, 482492), (88, 241246), (176, 120623)]