20851919361

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1\times {\mathrm{631}}^1$

素因数の和:1071

約数の個数: 96

約数和(自身を含む): 37510706688

約数和(自身を除く): 16658787327

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 157, 257, 273, 471, 631, 771, 819, 1099, 1413, 1799, 1893, 2041, 2313, 3297, 3341, 4417, 5397, 5679, 6123, 8203, 9891, 10023, 13251, 14287, 16191, 18369, 23387, 24609, 30069, 39753, 40349, 42861, 57421, 70161, 73827, 99067, 121047, 128583, 162167, 172263, 210483, 282443, 297201, 363141, 486501, 516789, 524537, 693469, 847329, 891603, 1135169, 1287871, 1459503, 1573611, 2080407, 2108171, 2541987, 3405507, 3671759, 3863613, 4720833, 6241221, 6324513, 9015097, 10216521, 11015277, 11590839, 14757197, 18973539, 25460219, 27045291, 33045831, 44271591, 76380657, 81135873, 132814773, 178221533, 229141971, 330982847, 534664599, 992948541, 1603993797, 2316879929, 2978845623, 6950639787, 20851919361]

約数ペア:

[(1, 20851919361), (3, 6950639787), (7, 2978845623), (9, 2316879929), (13, 1603993797), (21, 992948541), (39, 534664599), (63, 330982847), (91, 229141971), (117, 178221533), (157, 132814773), (257, 81135873), (273, 76380657), (471, 44271591), (631, 33045831), (771, 27045291), (819, 25460219), (1099, 18973539), (1413, 14757197), (1799, 11590839), (1893, 11015277), (2041, 10216521), (2313, 9015097), (3297, 6324513), (3341, 6241221), (4417, 4720833), (5397, 3863613), (5679, 3671759), (6123, 3405507), (8203, 2541987), (9891, 2108171), (10023, 2080407), (13251, 1573611), (14287, 1459503), (16191, 1287871), (18369, 1135169), (23387, 891603), (24609, 847329), (30069, 693469), (39753, 524537), (40349, 516789), (42861, 486501), (57421, 363141), (70161, 297201), (73827, 282443), (99067, 210483), (121047, 172263), (128583, 162167)]