21086443

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2243}}^1$

素因数の和:2346

約数の個数: 16

約数和(自身を含む): 25850880

約数和(自身を除く): 4764437

約数列:

[1, 7, 17, 79, 119, 553, 1343, 2243, 9401, 15701, 38131, 177197, 266917, 1240379, 3012349, 21086443]

約数ペア:

[(1, 21086443), (7, 3012349), (17, 1240379), (79, 266917), (119, 177197), (553, 38131), (1343, 15701), (2243, 9401)]