221387221

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 257092704

約数和(自身を除く): 35705483

約数列:

[1, 11, 19, 197, 209, 283, 361, 2167, 3113, 3743, 3971, 5377, 41173, 55751, 59147, 71117, 102163, 613261, 782287, 1059269, 1123793, 11651959, 20126111, 221387221]

約数ペア:

[(1, 221387221), (11, 20126111), (19, 11651959), (197, 1123793), (209, 1059269), (283, 782287), (361, 613261), (2167, 102163), (3113, 71117), (3743, 59147), (3971, 55751), (5377, 41173)]