20865944

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{3539}}^1$

素因数の和:3623

約数の個数: 32

約数和(自身を含む): 43329600

約数和(自身を除く): 22463656

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 134, 268, 536, 737, 1474, 2948, 3539, 5896, 7078, 14156, 28312, 38929, 77858, 155716, 237113, 311432, 474226, 948452, 1896904, 2608243, 5216486, 10432972, 20865944]

約数ペア:

[(1, 20865944), (2, 10432972), (4, 5216486), (8, 2608243), (11, 1896904), (22, 948452), (44, 474226), (67, 311432), (88, 237113), (134, 155716), (268, 77858), (536, 38929), (737, 28312), (1474, 14156), (2948, 7078), (3539, 5896)]