21648256

素因数分解:

$2^7\times 7^1\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:711

約数の個数: 64

約数和(自身を含む): 50698080

約数和(自身を除く): 29049824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 224, 259, 296, 448, 518, 592, 653, 896, 1036, 1184, 1306, 2072, 2368, 2612, 4144, 4571, 4736, 5224, 8288, 9142, 10448, 16576, 18284, 20896, 24161, 33152, 36568, 41792, 48322, 73136, 83584, 96644, 146272, 169127, 193288, 292544, 338254, 386576, 585088, 676508, 773152, 1353016, 1546304, 2706032, 3092608, 5412064, 10824128, 21648256]

約数ペア:

[(1, 21648256), (2, 10824128), (4, 5412064), (7, 3092608), (8, 2706032), (14, 1546304), (16, 1353016), (28, 773152), (32, 676508), (37, 585088), (56, 386576), (64, 338254), (74, 292544), (112, 193288), (128, 169127), (148, 146272), (224, 96644), (259, 83584), (296, 73136), (448, 48322), (518, 41792), (592, 36568), (653, 33152), (896, 24161), (1036, 20896), (1184, 18284), (1306, 16576), (2072, 10448), (2368, 9142), (2612, 8288), (4144, 5224), (4571, 4736)]