21906731

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{971}}^1$

素因数の和:1282

約数の個数: 16

約数和(自身を含む): 27433728

約数和(自身を除く): 5526997

約数列:

[1, 7, 11, 77, 293, 971, 2051, 3223, 6797, 10681, 22561, 74767, 284503, 1991521, 3129533, 21906731]

約数ペア:

[(1, 21906731), (7, 3129533), (11, 1991521), (77, 284503), (293, 74767), (971, 22561), (2051, 10681), (3223, 6797)]