19421703

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2069}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 32292000

約数和(自身を除く): 12870297

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 2069, 3129, 6207, 9387, 14483, 18621, 43449, 130347, 308281, 924843, 2157967, 2774529, 6473901, 19421703]

約数ペア:

[(1, 19421703), (3, 6473901), (7, 2774529), (9, 2157967), (21, 924843), (63, 308281), (149, 130347), (447, 43449), (1043, 18621), (1341, 14483), (2069, 9387), (3129, 6207)]