245197911

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{38791}}^1$

素因数の和:38851

約数の個数: 24

約数和(自身を含む): 389161344

約数和(自身を除く): 143963433

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 6321, 38791, 116373, 271537, 814611, 1668013, 1900759, 5004039, 5702277, 11676091, 35028273, 81732637, 245197911]

約数ペア:

[(1, 245197911), (3, 81732637), (7, 35028273), (21, 11676091), (43, 5702277), (49, 5004039), (129, 1900759), (147, 1668013), (301, 814611), (903, 271537), (2107, 116373), (6321, 38791)]