21168196

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6353}}^1$

素因数の和:6388

約数の個数: 36

約数和(自身を含む): 45634428

約数和(自身を除く): 24466232

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 476, 833, 1666, 3332, 6353, 12706, 25412, 44471, 88942, 108001, 177884, 216002, 311297, 432004, 622594, 756007, 1245188, 1512014, 3024028, 5292049, 10584098, 21168196]

約数ペア:

[(1, 21168196), (2, 10584098), (4, 5292049), (7, 3024028), (14, 1512014), (17, 1245188), (28, 756007), (34, 622594), (49, 432004), (68, 311297), (98, 216002), (119, 177884), (196, 108001), (238, 88942), (476, 44471), (833, 25412), (1666, 12706), (3332, 6353)]