20840834

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1667}}^1$

素因数の和:1742

約数の個数: 32

約数和(自身を含む): 38430720

約数和(自身を除く): 17589886

約数列:

[1, 2, 7, 14, 19, 38, 47, 94, 133, 266, 329, 658, 893, 1667, 1786, 3334, 6251, 11669, 12502, 23338, 31673, 63346, 78349, 156698, 221711, 443422, 548443, 1096886, 1488631, 2977262, 10420417, 20840834]

約数ペア:

[(1, 20840834), (2, 10420417), (7, 2977262), (14, 1488631), (19, 1096886), (38, 548443), (47, 443422), (94, 221711), (133, 156698), (266, 78349), (329, 63346), (658, 31673), (893, 23338), (1667, 12502), (1786, 11669), (3334, 6251)]