40390427

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{16921}}^1$

素因数の和:16970

約数の個数: 16

約数和(自身を含む): 51984384

約数和(自身を除く): 11593957

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 16921, 118447, 186131, 524551, 1302917, 3671857, 5770061, 40390427]

約数ペア:

[(1, 40390427), (7, 5770061), (11, 3671857), (31, 1302917), (77, 524551), (217, 186131), (341, 118447), (2387, 16921)]