21099470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{787}}^1$

素因数の和:1184

約数の個数: 32

約数和(自身を含む): 43573248

約数和(自身を除く): 22473778

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 383, 766, 787, 1574, 1915, 2681, 3830, 3935, 5362, 5509, 7870, 11018, 13405, 26810, 27545, 55090, 301421, 602842, 1507105, 2109947, 3014210, 4219894, 10549735, 21099470]

約数ペア:

[(1, 21099470), (2, 10549735), (5, 4219894), (7, 3014210), (10, 2109947), (14, 1507105), (35, 602842), (70, 301421), (383, 55090), (766, 27545), (787, 26810), (1574, 13405), (1915, 11018), (2681, 7870), (3830, 5509), (3935, 5362)]