20507973

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{15643}}^1$

素因数の和:15688

約数の個数: 16

約数和(自身を含む): 30036480

約数和(自身を除く): 9528507

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 15643, 46929, 297217, 359789, 891651, 1079367, 6835991, 20507973]

約数ペア:

[(1, 20507973), (3, 6835991), (19, 1079367), (23, 891651), (57, 359789), (69, 297217), (437, 46929), (1311, 15643)]