21324688

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{911}}^1$

素因数の和:956

約数の個数: 80

約数和(自身を含む): 54282240

約数和(自身を除く): 32957552

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 76, 77, 88, 112, 133, 152, 154, 176, 209, 266, 304, 308, 418, 532, 616, 836, 911, 1064, 1232, 1463, 1672, 1822, 2128, 2926, 3344, 3644, 5852, 6377, 7288, 10021, 11704, 12754, 14576, 17309, 20042, 23408, 25508, 34618, 40084, 51016, 69236, 70147, 80168, 102032, 121163, 138472, 140294, 160336, 190399, 242326, 276944, 280588, 380798, 484652, 561176, 761596, 969304, 1122352, 1332793, 1523192, 1938608, 2665586, 3046384, 5331172, 10662344, 21324688]

約数ペア:

[(1, 21324688), (2, 10662344), (4, 5331172), (7, 3046384), (8, 2665586), (11, 1938608), (14, 1523192), (16, 1332793), (19, 1122352), (22, 969304), (28, 761596), (38, 561176), (44, 484652), (56, 380798), (76, 280588), (77, 276944), (88, 242326), (112, 190399), (133, 160336), (152, 140294), (154, 138472), (176, 121163), (209, 102032), (266, 80168), (304, 70147), (308, 69236), (418, 51016), (532, 40084), (616, 34618), (836, 25508), (911, 23408), (1064, 20042), (1232, 17309), (1463, 14576), (1672, 12754), (1822, 11704), (2128, 10021), (2926, 7288), (3344, 6377), (3644, 5852)]