21479403

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15137}}^1$

素因数の和:15194

約数の個数: 16

約数和(自身を含む): 31971456

約数和(自身を除く): 10492053

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 15137, 45411, 166507, 499521, 650891, 1952673, 7159801, 21479403]

約数ペア:

[(1, 21479403), (3, 7159801), (11, 1952673), (33, 650891), (43, 499521), (129, 166507), (473, 45411), (1419, 15137)]