20975841

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{15233}}^1$

素因数の和:15262

約数の個数: 20

約数和(自身を含む): 33179652

約数和(自身を除く): 12203811

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 15233, 45699, 137097, 258961, 411291, 776883, 1233873, 2330649, 6991947, 20975841]

約数ペア:

[(1, 20975841), (3, 6991947), (9, 2330649), (17, 1233873), (27, 776883), (51, 411291), (81, 258961), (153, 137097), (459, 45699), (1377, 15233)]