19291671

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2203}}^1$

素因数の和:2355

約数の個数: 24

約数和(自身を含む): 32090240

約数和(自身を除く): 12798569

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2203, 2919, 6609, 8757, 15421, 19827, 46263, 138789, 306217, 918651, 2143519, 2755953, 6430557, 19291671]

約数ペア:

[(1, 19291671), (3, 6430557), (7, 2755953), (9, 2143519), (21, 918651), (63, 306217), (139, 138789), (417, 46263), (973, 19827), (1251, 15421), (2203, 8757), (2919, 6609)]