21984859

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3209}}^1$

素因数の和:3270

約数の個数: 16

約数和(自身を含む): 25885440

約数和(自身を除く): 3900581

約数列:

[1, 13, 17, 31, 221, 403, 527, 3209, 6851, 41717, 54553, 99479, 709189, 1293227, 1691143, 21984859]

約数ペア:

[(1, 21984859), (13, 1691143), (17, 1293227), (31, 709189), (221, 99479), (403, 54553), (527, 41717), (3209, 6851)]