20649112

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{509}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 42411600

約数和(自身を除く): 21762488

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 461, 509, 922, 1018, 1844, 2036, 3688, 4072, 5071, 5599, 10142, 11198, 20284, 22396, 40568, 44792, 234649, 469298, 938596, 1877192, 2581139, 5162278, 10324556, 20649112]

約数ペア:

[(1, 20649112), (2, 10324556), (4, 5162278), (8, 2581139), (11, 1877192), (22, 938596), (44, 469298), (88, 234649), (461, 44792), (509, 40568), (922, 22396), (1018, 20284), (1844, 11198), (2036, 10142), (3688, 5599), (4072, 5071)]