21598910

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1049}}^1$

素因数の和:1156

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19225090

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 1049, 2059, 2098, 4118, 5245, 10295, 10490, 20590, 30421, 60842, 74479, 148958, 152105, 304210, 372395, 744790, 2159891, 4319782, 10799455, 21598910]

約数ペア:

[(1, 21598910), (2, 10799455), (5, 4319782), (10, 2159891), (29, 744790), (58, 372395), (71, 304210), (142, 152105), (145, 148958), (290, 74479), (355, 60842), (710, 30421), (1049, 20590), (2059, 10490), (2098, 10295), (4118, 5245)]