21720594

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1049}}^1$

素因数の和:1107

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 32711406

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 29, 34, 42, 51, 58, 87, 102, 119, 174, 203, 238, 357, 406, 493, 609, 714, 986, 1049, 1218, 1479, 2098, 2958, 3147, 3451, 6294, 6902, 7343, 10353, 14686, 17833, 20706, 22029, 30421, 35666, 44058, 53499, 60842, 91263, 106998, 124831, 182526, 212947, 249662, 374493, 425894, 517157, 638841, 748986, 1034314, 1277682, 1551471, 3102942, 3620099, 7240198, 10860297, 21720594]

約数ペア:

[(1, 21720594), (2, 10860297), (3, 7240198), (6, 3620099), (7, 3102942), (14, 1551471), (17, 1277682), (21, 1034314), (29, 748986), (34, 638841), (42, 517157), (51, 425894), (58, 374493), (87, 249662), (102, 212947), (119, 182526), (174, 124831), (203, 106998), (238, 91263), (357, 60842), (406, 53499), (493, 44058), (609, 35666), (714, 30421), (986, 22029), (1049, 20706), (1218, 17833), (1479, 14686), (2098, 10353), (2958, 7343), (3147, 6902), (3451, 6294)]