21142192

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12829}}^1$

素因数の和:12940

約数の個数: 20

約数和(自身を含む): 41363920

約数和(自身を除く): 20221728

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12829, 25658, 51316, 102632, 205264, 1321387, 2642774, 5285548, 10571096, 21142192]

約数ペア:

[(1, 21142192), (2, 10571096), (4, 5285548), (8, 2642774), (16, 1321387), (103, 205264), (206, 102632), (412, 51316), (824, 25658), (1648, 12829)]