21515923

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7919}}^1$

素因数の和:7962

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 5095277

約数列:

[1, 11, 13, 19, 143, 209, 247, 2717, 7919, 87109, 102947, 150461, 1132417, 1655071, 1955993, 21515923]

約数ペア:

[(1, 21515923), (11, 1955993), (13, 1655071), (19, 1132417), (143, 150461), (209, 102947), (247, 87109), (2717, 7919)]