20955284

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 22953196

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 131, 197, 203, 262, 394, 406, 524, 788, 812, 917, 1379, 1834, 2758, 3668, 3799, 5516, 5713, 7598, 11426, 15196, 22852, 25807, 26593, 39991, 51614, 53186, 79982, 103228, 106372, 159964, 180649, 361298, 722596, 748403, 1496806, 2993612, 5238821, 10477642, 20955284]

約数ペア:

[(1, 20955284), (2, 10477642), (4, 5238821), (7, 2993612), (14, 1496806), (28, 748403), (29, 722596), (58, 361298), (116, 180649), (131, 159964), (197, 106372), (203, 103228), (262, 79982), (394, 53186), (406, 51614), (524, 39991), (788, 26593), (812, 25807), (917, 22852), (1379, 15196), (1834, 11426), (2758, 7598), (3668, 5713), (3799, 5516)]