221211207

素因数分解:

$3^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{10061}}^1$

素因数の和:10423

約数の個数: 24

約数和(自身を含む): 366256800

約数和(自身を除く): 145045593

約数列:

[1, 3, 7, 9, 21, 63, 349, 1047, 2443, 3141, 7329, 10061, 21987, 30183, 70427, 90549, 211281, 633843, 3511289, 10533867, 24579023, 31601601, 73737069, 221211207]

約数ペア:

[(1, 221211207), (3, 73737069), (7, 31601601), (9, 24579023), (21, 10533867), (63, 3511289), (349, 633843), (1047, 211281), (2443, 90549), (3141, 70427), (7329, 30183), (10061, 21987)]