21083145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2851}}^1$

素因数の和:2905

約数の個数: 32

約数和(自身を含む): 36961920

約数和(自身を除く): 15878775

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 2851, 7395, 8553, 14255, 42765, 48467, 82679, 145401, 242335, 248037, 413395, 727005, 1240185, 1405543, 4216629, 7027715, 21083145]

約数ペア:

[(1, 21083145), (3, 7027715), (5, 4216629), (15, 1405543), (17, 1240185), (29, 727005), (51, 413395), (85, 248037), (87, 242335), (145, 145401), (255, 82679), (435, 48467), (493, 42765), (1479, 14255), (2465, 8553), (2851, 7395)]