20979738

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89657}}^1$

素因数の和:89678

約数の個数: 24

約数和(自身を含む): 48953268

約数和(自身を除く): 27973530

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 89657, 179314, 268971, 537942, 806913, 1165541, 1613826, 2331082, 3496623, 6993246, 10489869, 20979738]

約数ペア:

[(1, 20979738), (2, 10489869), (3, 6993246), (6, 3496623), (9, 2331082), (13, 1613826), (18, 1165541), (26, 806913), (39, 537942), (78, 268971), (117, 179314), (234, 89657)]