212420019

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 361267200

約数和(自身を除く): 148847181

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 79, 133, 161, 237, 293, 399, 437, 483, 553, 879, 1311, 1501, 1659, 1817, 2051, 3059, 4503, 5451, 5567, 6153, 6739, 9177, 10507, 12719, 16701, 20217, 23147, 31521, 34523, 38157, 38969, 47173, 69441, 103569, 116907, 128041, 141519, 162029, 241661, 384123, 439793, 486087, 532381, 724983, 896287, 1319379, 1597143, 2688861, 3078551, 3726667, 9235653, 10115239, 11180001, 30345717, 70806673, 212420019]

約数ペア:

[(1, 212420019), (3, 70806673), (7, 30345717), (19, 11180001), (21, 10115239), (23, 9235653), (57, 3726667), (69, 3078551), (79, 2688861), (133, 1597143), (161, 1319379), (237, 896287), (293, 724983), (399, 532381), (437, 486087), (483, 439793), (553, 384123), (879, 241661), (1311, 162029), (1501, 141519), (1659, 128041), (1817, 116907), (2051, 103569), (3059, 69441), (4503, 47173), (5451, 38969), (5567, 38157), (6153, 34523), (6739, 31521), (9177, 23147), (10507, 20217), (12719, 16701)]