21420281139

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1\times {\mathrm{530507}}^1$

素因数の和:530866

約数の個数: 16

約数和(自身を含む): 29317994112

約数和(自身を除く): 7897712973

約数列:

[1, 3, 43, 129, 313, 939, 13459, 40377, 530507, 1591521, 22811801, 68435403, 166048691, 498146073, 7140093713, 21420281139]

約数ペア:

[(1, 21420281139), (3, 7140093713), (43, 498146073), (129, 166048691), (313, 68435403), (939, 22811801), (13459, 1591521), (40377, 530507)]