20185501427

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{18059}}^1$

素因数の和:18323

約数の個数: 32

約数和(自身を含む): 25340636160

約数和(自身を除く): 5155134733

約数列:

[1, 7, 13, 71, 91, 173, 497, 923, 1211, 2249, 6461, 12283, 15743, 18059, 85981, 126413, 159679, 234767, 1117753, 1282189, 1643369, 3124207, 8975323, 16668457, 21869449, 40614691, 116679199, 221818697, 284302837, 1552730879, 2883643061, 20185501427]

約数ペア:

[(1, 20185501427), (7, 2883643061), (13, 1552730879), (71, 284302837), (91, 221818697), (173, 116679199), (497, 40614691), (923, 21869449), (1211, 16668457), (2249, 8975323), (6461, 3124207), (12283, 1643369), (15743, 1282189), (18059, 1117753), (85981, 234767), (126413, 159679)]