28379391

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1\times {\mathrm{521}}^1$

素因数の和:862

約数の個数: 16

約数和(自身を含む): 38619648

約数和(自身を除く): 10240257

約数列:

[1, 3, 67, 201, 271, 521, 813, 1563, 18157, 34907, 54471, 104721, 141191, 423573, 9459797, 28379391]

約数ペア:

[(1, 28379391), (3, 9459797), (67, 423573), (201, 141191), (271, 104721), (521, 54471), (813, 34907), (1563, 18157)]