21787136

素因数分解:

$2^9\times 7^1\times {\mathrm{6079}}^1$

素因数の和:6104

約数の個数: 40

約数和(自身を含む): 49758720

約数和(自身を除く): 27971584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 6079, 12158, 24316, 42553, 48632, 85106, 97264, 170212, 194528, 340424, 389056, 680848, 778112, 1361696, 1556224, 2723392, 3112448, 5446784, 10893568, 21787136]

約数ペア:

[(1, 21787136), (2, 10893568), (4, 5446784), (7, 3112448), (8, 2723392), (14, 1556224), (16, 1361696), (28, 778112), (32, 680848), (56, 389056), (64, 340424), (112, 194528), (128, 170212), (224, 97264), (256, 85106), (448, 48632), (512, 42553), (896, 24316), (1792, 12158), (3584, 6079)]