21584108

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 48665232

約数和(自身を除く): 27081124

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 49, 52, 86, 91, 98, 172, 182, 196, 197, 301, 364, 394, 559, 602, 637, 788, 1118, 1204, 1274, 1379, 2107, 2236, 2548, 2561, 2758, 3913, 4214, 5122, 5516, 7826, 8428, 8471, 9653, 10244, 15652, 16942, 17927, 19306, 27391, 33884, 35854, 38612, 54782, 59297, 71708, 109564, 110123, 118594, 125489, 220246, 237188, 250978, 415079, 440492, 501956, 770861, 830158, 1541722, 1660316, 3083444, 5396027, 10792054, 21584108]

約数ペア:

[(1, 21584108), (2, 10792054), (4, 5396027), (7, 3083444), (13, 1660316), (14, 1541722), (26, 830158), (28, 770861), (43, 501956), (49, 440492), (52, 415079), (86, 250978), (91, 237188), (98, 220246), (172, 125489), (182, 118594), (196, 110123), (197, 109564), (301, 71708), (364, 59297), (394, 54782), (559, 38612), (602, 35854), (637, 33884), (788, 27391), (1118, 19306), (1204, 17927), (1274, 16942), (1379, 15652), (2107, 10244), (2236, 9653), (2548, 8471), (2561, 8428), (2758, 7826), (3913, 5516), (4214, 5122)]