21807616

素因数分解:

$2^9\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:432

約数の個数: 40

約数和(自身を含む): 43997184

約数和(自身を除く): 22189568

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 191, 223, 256, 382, 446, 512, 764, 892, 1528, 1784, 3056, 3568, 6112, 7136, 12224, 14272, 24448, 28544, 42593, 48896, 57088, 85186, 97792, 114176, 170372, 340744, 681488, 1362976, 2725952, 5451904, 10903808, 21807616]

約数ペア:

[(1, 21807616), (2, 10903808), (4, 5451904), (8, 2725952), (16, 1362976), (32, 681488), (64, 340744), (128, 170372), (191, 114176), (223, 97792), (256, 85186), (382, 57088), (446, 48896), (512, 42593), (764, 28544), (892, 24448), (1528, 14272), (1784, 12224), (3056, 7136), (3568, 6112)]