21542257

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1747}}^1$

素因数の和:1836

約数の個数: 16

約数和(自身を含む): 25171200

約数和(自身を除く): 3628943

約数列:

[1, 11, 19, 59, 209, 649, 1121, 1747, 12331, 19217, 33193, 103073, 365123, 1133803, 1958387, 21542257]

約数ペア:

[(1, 21542257), (11, 1958387), (19, 1133803), (59, 365123), (209, 103073), (649, 33193), (1121, 19217), (1747, 12331)]