21295268

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{233}}^1\times {\mathrm{313}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 38060568

約数和(自身を除く): 16765300

約数列:

[1, 2, 4, 73, 146, 233, 292, 313, 466, 626, 932, 1252, 17009, 22849, 34018, 45698, 68036, 72929, 91396, 145858, 291716, 5323817, 10647634, 21295268]

約数ペア:

[(1, 21295268), (2, 10647634), (4, 5323817), (73, 291716), (146, 145858), (233, 91396), (292, 72929), (313, 68036), (466, 45698), (626, 34018), (932, 22849), (1252, 17009)]