21079386

素因数分解:

$2^1\times 3^3\times {\mathrm{390359}}^1$

素因数の和:390370

約数の個数: 16

約数和(自身を含む): 46843200

約数和(自身を除く): 25763814

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390359, 780718, 1171077, 2342154, 3513231, 7026462, 10539693, 21079386]

約数ペア:

[(1, 21079386), (2, 10539693), (3, 7026462), (6, 3513231), (9, 2342154), (18, 1171077), (27, 780718), (54, 390359)]