208577979

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{1217}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 305912880

約数和(自身を除く): 97334901

約数列:

[1, 3, 9, 137, 139, 411, 417, 1217, 1233, 1251, 3651, 10953, 19043, 57129, 166729, 169163, 171387, 500187, 507489, 1500561, 1522467, 23175331, 69525993, 208577979]

約数ペア:

[(1, 208577979), (3, 69525993), (9, 23175331), (137, 1522467), (139, 1500561), (411, 507489), (417, 500187), (1217, 171387), (1233, 169163), (1251, 166729), (3651, 57129), (10953, 19043)]