21406011

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12239}}^1$

素因数の和:12306

約数の個数: 16

約数和(自身を含む): 31726080

約数和(自身を除く): 10320069

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12239, 36717, 134629, 403887, 648667, 1946001, 7135337, 21406011]

約数ペア:

[(1, 21406011), (3, 7135337), (11, 1946001), (33, 648667), (53, 403887), (159, 134629), (583, 36717), (1749, 12239)]