21816574

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{2647}}^1$

素因数の和:2979

約数の個数: 16

約数和(自身を含む): 35366688

約数和(自身を除く): 13550114

約数列:

[1, 2, 13, 26, 317, 634, 2647, 4121, 5294, 8242, 34411, 68822, 839099, 1678198, 10908287, 21816574]

約数ペア:

[(1, 21816574), (2, 10908287), (13, 1678198), (26, 839099), (317, 68822), (634, 34411), (2647, 8242), (4121, 5294)]