20880171

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{997}}^1$

素因数の和:1195

約数の個数: 24

約数和(自身を含む): 32694480

約数和(自身を除く): 11814309

約数列:

[1, 3, 9, 13, 39, 117, 179, 537, 997, 1611, 2327, 2991, 6981, 8973, 12961, 20943, 38883, 116649, 178463, 535389, 1606167, 2320019, 6960057, 20880171]

約数ペア:

[(1, 20880171), (3, 6960057), (9, 2320019), (13, 1606167), (39, 535389), (117, 178463), (179, 116649), (537, 38883), (997, 20943), (1611, 12961), (2327, 8973), (2991, 6981)]