21734727

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 36283392

約数和(自身を除く): 14548665

約数列:

[1, 3, 7, 19, 21, 47, 57, 61, 133, 141, 183, 329, 361, 399, 427, 893, 987, 1083, 1159, 1281, 2527, 2679, 2867, 3477, 6251, 7581, 8113, 8601, 16967, 18753, 20069, 22021, 24339, 50901, 54473, 60207, 66063, 118769, 154147, 163419, 356307, 381311, 462441, 1034987, 1143933, 3104961, 7244909, 21734727]

約数ペア:

[(1, 21734727), (3, 7244909), (7, 3104961), (19, 1143933), (21, 1034987), (47, 462441), (57, 381311), (61, 356307), (133, 163419), (141, 154147), (183, 118769), (329, 66063), (361, 60207), (399, 54473), (427, 50901), (893, 24339), (987, 22021), (1083, 20069), (1159, 18753), (1281, 16967), (2527, 8601), (2679, 8113), (2867, 7581), (3477, 6251)]