19979968323

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1\times {\mathrm{487}}^1$

素因数の和:952

約数の個数: 64

約数和(自身を含む): 31463866368

約数和(自身を除く): 11483898045

約数列:

[1, 3, 7, 21, 47, 141, 197, 211, 329, 487, 591, 633, 987, 1379, 1461, 1477, 3409, 4137, 4431, 9259, 9917, 10227, 22889, 27777, 29751, 41567, 64813, 68667, 69419, 95939, 102757, 124701, 160223, 194439, 208257, 287817, 290969, 308271, 480669, 671573, 719299, 872907, 1953649, 2014719, 2157897, 4509133, 4829579, 5860947, 13527399, 13675543, 14488737, 20243129, 31563931, 33807053, 41026629, 60729387, 94691793, 101421159, 141701903, 425105709, 951427063, 2854281189, 6659989441, 19979968323]

約数ペア:

[(1, 19979968323), (3, 6659989441), (7, 2854281189), (21, 951427063), (47, 425105709), (141, 141701903), (197, 101421159), (211, 94691793), (329, 60729387), (487, 41026629), (591, 33807053), (633, 31563931), (987, 20243129), (1379, 14488737), (1461, 13675543), (1477, 13527399), (3409, 5860947), (4137, 4829579), (4431, 4509133), (9259, 2157897), (9917, 2014719), (10227, 1953649), (22889, 872907), (27777, 719299), (29751, 671573), (41567, 480669), (64813, 308271), (68667, 290969), (69419, 287817), (95939, 208257), (102757, 194439), (124701, 160223)]