21259942

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{1489}}^1$

素因数の和:1572

約数の個数: 24

約数和(自身を含む): 35670600

約数和(自身を除く): 14410658

約数列:

[1, 2, 11, 22, 59, 118, 121, 242, 649, 1298, 1489, 2978, 7139, 14278, 16379, 32758, 87851, 175702, 180169, 360338, 966361, 1932722, 10629971, 21259942]

約数ペア:

[(1, 21259942), (2, 10629971), (11, 1932722), (22, 966361), (59, 360338), (118, 180169), (121, 175702), (242, 87851), (649, 32758), (1298, 16379), (1489, 14278), (2978, 7139)]