208190871

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1019}}^1$

素因数の和:1105

約数の個数: 64

約数和(自身を含む): 376012800

約数和(自身を除く): 167821929

約数列:

[1, 3, 7, 9, 21, 23, 27, 47, 63, 69, 141, 161, 189, 207, 329, 423, 483, 621, 987, 1019, 1081, 1269, 1449, 2961, 3057, 3243, 4347, 7133, 7567, 8883, 9171, 9729, 21399, 22701, 23437, 27513, 29187, 47893, 64197, 68103, 70311, 143679, 164059, 192591, 204309, 210933, 335251, 431037, 492177, 632799, 1005753, 1101539, 1293111, 1476531, 3017259, 3304617, 4429593, 7710773, 9051777, 9913851, 23132319, 29741553, 69396957, 208190871]

約数ペア:

[(1, 208190871), (3, 69396957), (7, 29741553), (9, 23132319), (21, 9913851), (23, 9051777), (27, 7710773), (47, 4429593), (63, 3304617), (69, 3017259), (141, 1476531), (161, 1293111), (189, 1101539), (207, 1005753), (329, 632799), (423, 492177), (483, 431037), (621, 335251), (987, 210933), (1019, 204309), (1081, 192591), (1269, 164059), (1449, 143679), (2961, 70311), (3057, 68103), (3243, 64197), (4347, 47893), (7133, 29187), (7567, 27513), (8883, 23437), (9171, 22701), (9729, 21399)]