20980284

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{134489}}^1$

素因数の和:134509

約数の個数: 24

約数和(自身を含む): 52720080

約数和(自身を除く): 31739796

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 134489, 268978, 403467, 537956, 806934, 1613868, 1748357, 3496714, 5245071, 6993428, 10490142, 20980284]

約数ペア:

[(1, 20980284), (2, 10490142), (3, 6993428), (4, 5245071), (6, 3496714), (12, 1748357), (13, 1613868), (26, 806934), (39, 537956), (52, 403467), (78, 268978), (156, 134489)]