21114880

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1031}}^1$

素因数の和:1060

約数の個数: 52

約数和(自身を含む): 50718672

約数和(自身を除く): 29603792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1031, 1280, 2048, 2062, 2560, 4096, 4124, 5120, 5155, 8248, 10240, 10310, 16496, 20480, 20620, 32992, 41240, 65984, 82480, 131968, 164960, 263936, 329920, 527872, 659840, 1055744, 1319680, 2111488, 2639360, 4222976, 5278720, 10557440, 21114880]

約数ペア:

[(1, 21114880), (2, 10557440), (4, 5278720), (5, 4222976), (8, 2639360), (10, 2111488), (16, 1319680), (20, 1055744), (32, 659840), (40, 527872), (64, 329920), (80, 263936), (128, 164960), (160, 131968), (256, 82480), (320, 65984), (512, 41240), (640, 32992), (1024, 20620), (1031, 20480), (1280, 16496), (2048, 10310), (2062, 10240), (2560, 8248), (4096, 5155), (4124, 5120)]