21780558

素因数分解:

$2^1\times 3^2\times {\mathrm{59}}^1\times {\mathrm{20509}}^1$

素因数の和:20576

約数の個数: 24

約数和(自身を含む): 47993400

約数和(自身を除く): 26212842

約数列:

[1, 2, 3, 6, 9, 18, 59, 118, 177, 354, 531, 1062, 20509, 41018, 61527, 123054, 184581, 369162, 1210031, 2420062, 3630093, 7260186, 10890279, 21780558]

約数ペア:

[(1, 21780558), (2, 10890279), (3, 7260186), (6, 3630093), (9, 2420062), (18, 1210031), (59, 369162), (118, 184581), (177, 123054), (354, 61527), (531, 41018), (1062, 20509)]