21353739

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{34057}}^1$

素因数の和:34090

約数の個数: 16

約数和(自身を含む): 32695680

約数和(自身を除く): 11341941

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 34057, 102171, 374627, 647083, 1123881, 1941249, 7117913, 21353739]

約数ペア:

[(1, 21353739), (3, 7117913), (11, 1941249), (19, 1123881), (33, 647083), (57, 374627), (209, 102171), (627, 34057)]