21176744

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1621}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 42042240

約数和(自身を除く): 20865496

約数列:

[1, 2, 4, 8, 23, 46, 71, 92, 142, 184, 284, 568, 1621, 1633, 3242, 3266, 6484, 6532, 12968, 13064, 37283, 74566, 115091, 149132, 230182, 298264, 460364, 920728, 2647093, 5294186, 10588372, 21176744]

約数ペア:

[(1, 21176744), (2, 10588372), (4, 5294186), (8, 2647093), (23, 920728), (46, 460364), (71, 298264), (92, 230182), (142, 149132), (184, 115091), (284, 74566), (568, 37283), (1621, 13064), (1633, 12968), (3242, 6532), (3266, 6484)]