20138937

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1039}}^1$

素因数の和:1133

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 13407303

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1039, 1491, 2769, 3117, 6461, 7273, 13507, 19383, 21819, 40521, 73769, 94549, 221307, 283647, 516383, 958997, 1549149, 2876991, 6712979, 20138937]

約数ペア:

[(1, 20138937), (3, 6712979), (7, 2876991), (13, 1549149), (21, 958997), (39, 516383), (71, 283647), (91, 221307), (213, 94549), (273, 73769), (497, 40521), (923, 21819), (1039, 19383), (1491, 13507), (2769, 7273), (3117, 6461)]