21310976

素因数分解:

$2^9\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:514

約数の個数: 40

約数和(自身を含む): 43088760

約数和(自身を除く): 21777784

約数列:

[1, 2, 4, 8, 16, 32, 64, 107, 128, 214, 256, 389, 428, 512, 778, 856, 1556, 1712, 3112, 3424, 6224, 6848, 12448, 13696, 24896, 27392, 41623, 49792, 54784, 83246, 99584, 166492, 199168, 332984, 665968, 1331936, 2663872, 5327744, 10655488, 21310976]

約数ペア:

[(1, 21310976), (2, 10655488), (4, 5327744), (8, 2663872), (16, 1331936), (32, 665968), (64, 332984), (107, 199168), (128, 166492), (214, 99584), (256, 83246), (389, 54784), (428, 49792), (512, 41623), (778, 27392), (856, 24896), (1556, 13696), (1712, 12448), (3112, 6848), (3424, 6224)]