21760768

素因数分解:

$2^8\times {\mathrm{167}}^1\times {\mathrm{509}}^1$

素因数の和:692

約数の個数: 36

約数和(自身を含む): 43782480

約数和(自身を除く): 22021712

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 167, 256, 334, 509, 668, 1018, 1336, 2036, 2672, 4072, 5344, 8144, 10688, 16288, 21376, 32576, 42752, 65152, 85003, 130304, 170006, 340012, 680024, 1360048, 2720096, 5440192, 10880384, 21760768]

約数ペア:

[(1, 21760768), (2, 10880384), (4, 5440192), (8, 2720096), (16, 1360048), (32, 680024), (64, 340012), (128, 170006), (167, 130304), (256, 85003), (334, 65152), (509, 42752), (668, 32576), (1018, 21376), (1336, 16288), (2036, 10688), (2672, 8144), (4072, 5344)]