19117287

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15971}}^1$

素因数の和:16003

約数の個数: 24

約数和(自身を含む): 33221760

約数和(自身を除く): 14104473

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 15971, 47913, 111797, 143739, 303449, 335391, 910347, 1006173, 2124143, 2731041, 6372429, 19117287]

約数ペア:

[(1, 19117287), (3, 6372429), (7, 2731041), (9, 2124143), (19, 1006173), (21, 910347), (57, 335391), (63, 303449), (133, 143739), (171, 111797), (399, 47913), (1197, 15971)]