19686392

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{641}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 40446000

約数和(自身を除く): 20759608

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 349, 641, 698, 1282, 1396, 2564, 2792, 3839, 5128, 7051, 7678, 14102, 15356, 28204, 30712, 56408, 223709, 447418, 894836, 1789672, 2460799, 4921598, 9843196, 19686392]

約数ペア:

[(1, 19686392), (2, 9843196), (4, 4921598), (8, 2460799), (11, 1789672), (22, 894836), (44, 447418), (88, 223709), (349, 56408), (641, 30712), (698, 28204), (1282, 15356), (1396, 14102), (2564, 7678), (2792, 7051), (3839, 5128)]