1991262

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 4998672

約数和(自身を除く): 3007410

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 521, 546, 637, 1042, 1274, 1563, 1911, 3126, 3647, 3822, 6773, 7294, 10941, 13546, 20319, 21882, 25529, 40638, 47411, 51058, 76587, 94822, 142233, 153174, 284466, 331877, 663754, 995631, 1991262]

約数ペア:

[(1, 1991262), (2, 995631), (3, 663754), (6, 331877), (7, 284466), (13, 153174), (14, 142233), (21, 94822), (26, 76587), (39, 51058), (42, 47411), (49, 40638), (78, 25529), (91, 21882), (98, 20319), (147, 13546), (182, 10941), (273, 7294), (294, 6773), (521, 3822), (546, 3647), (637, 3126), (1042, 1911), (1274, 1563)]