21055591

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 1926809

約数列:

[1, 19, 41, 151, 179, 779, 2869, 3401, 6191, 7339, 27029, 117629, 139441, 513551, 1108189, 21055591]

約数ペア:

[(1, 21055591), (19, 1108189), (41, 513551), (151, 139441), (179, 117629), (779, 27029), (2869, 7339), (3401, 6191)]