19881836

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29411}}^1$

素因数の和:29441

約数の個数: 18

約数和(自身を含む): 37676772

約数和(自身を除く): 17794936

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29411, 58822, 117644, 382343, 764686, 1529372, 4970459, 9940918, 19881836]

約数ペア:

[(1, 19881836), (2, 9940918), (4, 4970459), (13, 1529372), (26, 764686), (52, 382343), (169, 117644), (338, 58822), (676, 29411)]