21896644

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 50408064

約数和(自身を除く): 28511420

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 121, 154, 161, 242, 253, 281, 308, 322, 484, 506, 562, 644, 847, 1012, 1124, 1694, 1771, 1967, 2783, 3091, 3388, 3542, 3934, 5566, 6182, 6463, 7084, 7868, 11132, 12364, 12926, 19481, 21637, 25852, 34001, 38962, 43274, 45241, 68002, 71093, 77924, 86548, 90482, 136004, 142186, 180964, 238007, 284372, 476014, 497651, 782023, 952028, 995302, 1564046, 1990604, 3128092, 5474161, 10948322, 21896644]

約数ペア:

[(1, 21896644), (2, 10948322), (4, 5474161), (7, 3128092), (11, 1990604), (14, 1564046), (22, 995302), (23, 952028), (28, 782023), (44, 497651), (46, 476014), (77, 284372), (92, 238007), (121, 180964), (154, 142186), (161, 136004), (242, 90482), (253, 86548), (281, 77924), (308, 71093), (322, 68002), (484, 45241), (506, 43274), (562, 38962), (644, 34001), (847, 25852), (1012, 21637), (1124, 19481), (1694, 12926), (1771, 12364), (1967, 11132), (2783, 7868), (3091, 7084), (3388, 6463), (3542, 6182), (3934, 5566)]