21084573

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{293}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 30326688

約数和(自身を除く): 9242115

約数列:

[1, 3, 17, 51, 83, 249, 289, 293, 867, 879, 1411, 4233, 4981, 14943, 23987, 24319, 71961, 72957, 84677, 254031, 413423, 1240269, 7028191, 21084573]

約数ペア:

[(1, 21084573), (3, 7028191), (17, 1240269), (51, 413423), (83, 254031), (249, 84677), (289, 72957), (293, 71961), (867, 24319), (879, 23987), (1411, 14943), (4233, 4981)]