13221891

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{463}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 20267520

約数和(自身を除く): 7045629

約数列:

[1, 3, 9, 19, 57, 167, 171, 463, 501, 1389, 1503, 3173, 4167, 8797, 9519, 26391, 28557, 77321, 79173, 231963, 695889, 1469099, 4407297, 13221891]

約数ペア:

[(1, 13221891), (3, 4407297), (9, 1469099), (19, 695889), (57, 231963), (167, 79173), (171, 77321), (463, 28557), (501, 26391), (1389, 9519), (1503, 8797), (3173, 4167)]