19642287

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2843}}^1$

素因数の和:2907

約数の個数: 24

約数和(自身を含む): 31124736

約数和(自身を除く): 11482449

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 2843, 6909, 8529, 19901, 59703, 133621, 139307, 400863, 417921, 935347, 2806041, 6547429, 19642287]

約数ペア:

[(1, 19642287), (3, 6547429), (7, 2806041), (21, 935347), (47, 417921), (49, 400863), (141, 139307), (147, 133621), (329, 59703), (987, 19901), (2303, 8529), (2843, 6909)]