81021507

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{7321}}^1$

素因数の和:7379

約数の個数: 32

約数和(自身を含む): 134959104

約数和(自身を除く): 53937597

約数列:

[1, 3, 7, 17, 21, 31, 51, 93, 119, 217, 357, 527, 651, 1581, 3689, 7321, 11067, 21963, 51247, 124457, 153741, 226951, 373371, 680853, 871199, 1588657, 2613597, 3858167, 4765971, 11574501, 27007169, 81021507]

約数ペア:

[(1, 81021507), (3, 27007169), (7, 11574501), (17, 4765971), (21, 3858167), (31, 2613597), (51, 1588657), (93, 871199), (119, 680853), (217, 373371), (357, 226951), (527, 153741), (651, 124457), (1581, 51247), (3689, 21963), (7321, 11067)]