21536199

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5657}}^1$

素因数の和:5716

約数の個数: 20

約数和(自身を含む): 32861664

約数和(自身を除く): 11325465

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5657, 16971, 50913, 152739, 265879, 458217, 797637, 2392911, 7178733, 21536199]

約数ペア:

[(1, 21536199), (3, 7178733), (9, 2392911), (27, 797637), (47, 458217), (81, 265879), (141, 152739), (423, 50913), (1269, 16971), (3807, 5657)]