155687007

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{390193}}^1$

素因数の和:390222

約数の個数: 16

約数和(自身を含む): 249724160

約数和(自身を除く): 94037153

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 390193, 1170579, 2731351, 7413667, 8194053, 22241001, 51895669, 155687007]

約数ペア:

[(1, 155687007), (3, 51895669), (7, 22241001), (19, 8194053), (21, 7413667), (57, 2731351), (133, 1170579), (399, 390193)]