21243982

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{10243}}^1$

素因数の和:10323

約数の個数: 16

約数和(自身を含む): 34296912

約数和(自身を除く): 13052930

約数列:

[1, 2, 17, 34, 61, 122, 1037, 2074, 10243, 20486, 174131, 348262, 624823, 1249646, 10621991, 21243982]

約数ペア:

[(1, 21243982), (2, 10621991), (17, 1249646), (34, 624823), (61, 348262), (122, 174131), (1037, 20486), (2074, 10243)]