81364647

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{42577}}^1$

素因数の和:42607

約数の個数: 24

約数和(自身を含む): 135908976

約数和(自身を除く): 54544329

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 42577, 127731, 298039, 553501, 894117, 1660503, 2086273, 3874507, 6258819, 11623521, 27121549, 81364647]

約数ペア:

[(1, 81364647), (3, 27121549), (7, 11623521), (13, 6258819), (21, 3874507), (39, 2086273), (49, 1660503), (91, 894117), (147, 553501), (273, 298039), (637, 127731), (1911, 42577)]