20979582

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{268969}}^1$

素因数の和:268987

約数の個数: 16

約数和(自身を含む): 45186960

約数和(自身を除く): 24207378

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 268969, 537938, 806907, 1613814, 3496597, 6993194, 10489791, 20979582]

約数ペア:

[(1, 20979582), (2, 10489791), (3, 6993194), (6, 3496597), (13, 1613814), (26, 806907), (39, 537938), (78, 268969)]