21772233

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:128

約数の個数: 80

約数和(自身を含む): 40888320

約数和(自身を除く): 19116087

約数列:

[1, 3, 7, 9, 19, 21, 27, 43, 47, 57, 63, 81, 129, 133, 141, 171, 189, 301, 329, 387, 399, 423, 513, 567, 817, 893, 903, 987, 1161, 1197, 1269, 1539, 2021, 2451, 2679, 2709, 2961, 3483, 3591, 3807, 5719, 6063, 6251, 7353, 8037, 8127, 8883, 10773, 14147, 17157, 18189, 18753, 22059, 24111, 24381, 26649, 38399, 42441, 51471, 54567, 56259, 66177, 72333, 115197, 127323, 154413, 163701, 168777, 268793, 345591, 381969, 463239, 506331, 806379, 1036773, 1145907, 2419137, 3110319, 7257411, 21772233]

約数ペア:

[(1, 21772233), (3, 7257411), (7, 3110319), (9, 2419137), (19, 1145907), (21, 1036773), (27, 806379), (43, 506331), (47, 463239), (57, 381969), (63, 345591), (81, 268793), (129, 168777), (133, 163701), (141, 154413), (171, 127323), (189, 115197), (301, 72333), (329, 66177), (387, 56259), (399, 54567), (423, 51471), (513, 42441), (567, 38399), (817, 26649), (893, 24381), (903, 24111), (987, 22059), (1161, 18753), (1197, 18189), (1269, 17157), (1539, 14147), (2021, 10773), (2451, 8883), (2679, 8127), (2709, 8037), (2961, 7353), (3483, 6251), (3591, 6063), (3807, 5719)]