19019421

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{13291}}^1$

素因数の和:13353

約数の個数: 16

約数和(自身を含む): 28710720

約数和(自身を除く): 9691299

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 13291, 39873, 119619, 358857, 704423, 2113269, 6339807, 19019421]

約数ペア:

[(1, 19019421), (3, 6339807), (9, 2113269), (27, 704423), (53, 358857), (159, 119619), (477, 39873), (1431, 13291)]