19408636

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{28711}}^1$

素因数の和:28741

約数の個数: 18

約数和(自身を含む): 36780072

約数和(自身を除く): 17371436

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 28711, 57422, 114844, 373243, 746486, 1492972, 4852159, 9704318, 19408636]

約数ペア:

[(1, 19408636), (2, 9704318), (4, 4852159), (13, 1492972), (26, 746486), (52, 373243), (169, 114844), (338, 57422), (676, 28711)]