221420927

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{9851}}^1$

素因数の和:9903

約数の個数: 24

約数和(自身を含む): 288466560

約数和(自身を除く): 67045633

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 1183, 1729, 3211, 9851, 22477, 68957, 128063, 187169, 896441, 1310183, 1664819, 2433197, 11653733, 17032379, 31631561, 221420927]

約数ペア:

[(1, 221420927), (7, 31631561), (13, 17032379), (19, 11653733), (91, 2433197), (133, 1664819), (169, 1310183), (247, 896441), (1183, 187169), (1729, 128063), (3211, 68957), (9851, 22477)]