21447904

素因数分解:

$2^5\times {\mathrm{389}}^1\times {\mathrm{1723}}^1$

素因数の和:2122

約数の個数: 24

約数和(自身を含む): 42358680

約数和(自身を除く): 20910776

約数列:

[1, 2, 4, 8, 16, 32, 389, 778, 1556, 1723, 3112, 3446, 6224, 6892, 12448, 13784, 27568, 55136, 670247, 1340494, 2680988, 5361976, 10723952, 21447904]

約数ペア:

[(1, 21447904), (2, 10723952), (4, 5361976), (8, 2680988), (16, 1340494), (32, 670247), (389, 55136), (778, 27568), (1556, 13784), (1723, 12448), (3112, 6892), (3446, 6224)]