20397597

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 31064064

約数和(自身を除く): 10666467

約数列:

[1, 3, 11, 31, 33, 93, 127, 157, 341, 381, 471, 1023, 1397, 1727, 3937, 4191, 4867, 5181, 11811, 14601, 19939, 43307, 53537, 59817, 129921, 160611, 219329, 618109, 657987, 1854327, 6799199, 20397597]

約数ペア:

[(1, 20397597), (3, 6799199), (11, 1854327), (31, 657987), (33, 618109), (93, 219329), (127, 160611), (157, 129921), (341, 59817), (381, 53537), (471, 43307), (1023, 19939), (1397, 14601), (1727, 11811), (3937, 5181), (4191, 4867)]