21233583

素因数分解:

$3^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:120

約数の個数: 64

約数和(自身を含む): 38835200

約数和(自身を除く): 17601617

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 73, 81, 133, 171, 189, 219, 243, 399, 511, 513, 567, 657, 729, 1197, 1387, 1533, 1539, 1701, 1971, 2187, 3591, 4161, 4599, 4617, 5103, 5913, 9709, 10773, 12483, 13797, 13851, 15309, 17739, 29127, 32319, 37449, 41391, 41553, 53217, 87381, 96957, 112347, 124173, 159651, 262143, 290871, 337041, 372519, 786429, 1011123, 1117557, 2359287, 3033369, 7077861, 21233583]

約数ペア:

[(1, 21233583), (3, 7077861), (7, 3033369), (9, 2359287), (19, 1117557), (21, 1011123), (27, 786429), (57, 372519), (63, 337041), (73, 290871), (81, 262143), (133, 159651), (171, 124173), (189, 112347), (219, 96957), (243, 87381), (399, 53217), (511, 41553), (513, 41391), (567, 37449), (657, 32319), (729, 29127), (1197, 17739), (1387, 15309), (1533, 13851), (1539, 13797), (1701, 12483), (1971, 10773), (2187, 9709), (3591, 5913), (4161, 5103), (4599, 4617)]