20903670392

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{991}}^1\times {\mathrm{239699}}^1$

素因数の和:240707

約数の個数: 32

約数和(自身を含む): 42800832000

約数和(自身を除く): 21897161608

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 991, 1982, 3964, 7928, 10901, 21802, 43604, 87208, 239699, 479398, 958796, 1917592, 2636689, 5273378, 10546756, 21093512, 237541709, 475083418, 950166836, 1900333672, 2612958799, 5225917598, 10451835196, 20903670392]

約数ペア:

[(1, 20903670392), (2, 10451835196), (4, 5225917598), (8, 2612958799), (11, 1900333672), (22, 950166836), (44, 475083418), (88, 237541709), (991, 21093512), (1982, 10546756), (3964, 5273378), (7928, 2636689), (10901, 1917592), (21802, 958796), (43604, 479398), (87208, 239699)]