21392392

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{977}}^1$

素因数の和:1030

約数の個数: 64

約数和(自身を含む): 50699520

約数和(自身を除く): 29307128

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 46, 56, 68, 92, 119, 136, 161, 184, 238, 322, 391, 476, 644, 782, 952, 977, 1288, 1564, 1954, 2737, 3128, 3908, 5474, 6839, 7816, 10948, 13678, 16609, 21896, 22471, 27356, 33218, 44942, 54712, 66436, 89884, 116263, 132872, 157297, 179768, 232526, 314594, 382007, 465052, 629188, 764014, 930104, 1258376, 1528028, 2674049, 3056056, 5348098, 10696196, 21392392]

約数ペア:

[(1, 21392392), (2, 10696196), (4, 5348098), (7, 3056056), (8, 2674049), (14, 1528028), (17, 1258376), (23, 930104), (28, 764014), (34, 629188), (46, 465052), (56, 382007), (68, 314594), (92, 232526), (119, 179768), (136, 157297), (161, 132872), (184, 116263), (238, 89884), (322, 66436), (391, 54712), (476, 44942), (644, 33218), (782, 27356), (952, 22471), (977, 21896), (1288, 16609), (1564, 13678), (1954, 10948), (2737, 7816), (3128, 6839), (3908, 5474)]