21049359

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{9007}}^1$

素因数の和:9070

約数の個数: 16

約数和(自身を含む): 30266880

約数和(自身を除く): 9217521

約数列:

[1, 3, 19, 41, 57, 123, 779, 2337, 9007, 27021, 171133, 369287, 513399, 1107861, 7016453, 21049359]

約数ペア:

[(1, 21049359), (3, 7016453), (19, 1107861), (41, 513399), (57, 369287), (123, 171133), (779, 27021), (2337, 9007)]