21161692

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{277}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 37830240

約数和(自身を除く): 16668548

約数列:

[1, 2, 4, 71, 142, 269, 277, 284, 538, 554, 1076, 1108, 19099, 19667, 38198, 39334, 74513, 76396, 78668, 149026, 298052, 5290423, 10580846, 21161692]

約数ペア:

[(1, 21161692), (2, 10580846), (4, 5290423), (71, 298052), (142, 149026), (269, 78668), (277, 76396), (284, 74513), (538, 39334), (554, 38198), (1076, 19667), (1108, 19099)]