28138341

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2971}}^1$

素因数の和:3033

約数の個数: 32

約数和(自身を含む): 47932416

約数和(自身を除く): 19794075

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 123, 231, 287, 451, 861, 1353, 2971, 3157, 8913, 9471, 20797, 32681, 62391, 98043, 121811, 228767, 365433, 686301, 852677, 1339921, 2558031, 4019763, 9379447, 28138341]

約数ペア:

[(1, 28138341), (3, 9379447), (7, 4019763), (11, 2558031), (21, 1339921), (33, 852677), (41, 686301), (77, 365433), (123, 228767), (231, 121811), (287, 98043), (451, 62391), (861, 32681), (1353, 20797), (2971, 9471), (3157, 8913)]