21203504

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^2\times {\mathrm{197}}^1$

素因数の和:274

約数の個数: 60

約数和(自身を含む): 48760272

約数和(自身を除く): 27556768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 197, 217, 248, 394, 434, 496, 788, 868, 961, 1379, 1576, 1736, 1922, 2758, 3152, 3472, 3844, 5516, 6107, 6727, 7688, 11032, 12214, 13454, 15376, 22064, 24428, 26908, 42749, 48856, 53816, 85498, 97712, 107632, 170996, 189317, 341992, 378634, 683984, 757268, 1325219, 1514536, 2650438, 3029072, 5300876, 10601752, 21203504]

約数ペア:

[(1, 21203504), (2, 10601752), (4, 5300876), (7, 3029072), (8, 2650438), (14, 1514536), (16, 1325219), (28, 757268), (31, 683984), (56, 378634), (62, 341992), (112, 189317), (124, 170996), (197, 107632), (217, 97712), (248, 85498), (394, 53816), (434, 48856), (496, 42749), (788, 26908), (868, 24428), (961, 22064), (1379, 15376), (1576, 13454), (1736, 12214), (1922, 11032), (2758, 7688), (3152, 6727), (3472, 6107), (3844, 5516)]