20877736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{3541}}^1$

素因数の和:3625

約数の個数: 32

約数和(自身を含む): 43354080

約数和(自身を除く): 22476344

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 134, 268, 536, 737, 1474, 2948, 3541, 5896, 7082, 14164, 28328, 38951, 77902, 155804, 237247, 311608, 474494, 948988, 1897976, 2609717, 5219434, 10438868, 20877736]

約数ペア:

[(1, 20877736), (2, 10438868), (4, 5219434), (8, 2609717), (11, 1897976), (22, 948988), (44, 474494), (67, 311608), (88, 237247), (134, 155804), (268, 77902), (536, 38951), (737, 28328), (1474, 14164), (2948, 7082), (3541, 5896)]