21065601

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{1303}}^1$

素因数の和:1640

約数の個数: 16

約数和(自身を含む): 29856384

約数和(自身を除く): 8790783

約数列:

[1, 3, 17, 51, 317, 951, 1303, 3909, 5389, 16167, 22151, 66453, 413051, 1239153, 7021867, 21065601]

約数ペア:

[(1, 21065601), (3, 7021867), (17, 1239153), (51, 413051), (317, 66453), (951, 22151), (1303, 16167), (3909, 5389)]