21297744

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:425

約数の個数: 120

約数和(自身を含む): 66440192

約数和(自身を除く): 45142448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 36, 39, 48, 52, 62, 72, 78, 93, 104, 117, 124, 144, 156, 186, 208, 234, 248, 279, 312, 367, 372, 403, 468, 496, 558, 624, 734, 744, 806, 936, 1101, 1116, 1209, 1468, 1488, 1612, 1872, 2202, 2232, 2418, 2936, 3224, 3303, 3627, 4404, 4464, 4771, 4836, 5872, 6448, 6606, 7254, 8808, 9542, 9672, 11377, 13212, 14313, 14508, 17616, 19084, 19344, 22754, 26424, 28626, 29016, 34131, 38168, 42939, 45508, 52848, 57252, 58032, 68262, 76336, 85878, 91016, 102393, 114504, 136524, 147901, 171756, 182032, 204786, 229008, 273048, 295802, 343512, 409572, 443703, 546096, 591604, 687024, 819144, 887406, 1183208, 1331109, 1638288, 1774812, 2366416, 2662218, 3549624, 5324436, 7099248, 10648872, 21297744]

約数ペア:

[(1, 21297744), (2, 10648872), (3, 7099248), (4, 5324436), (6, 3549624), (8, 2662218), (9, 2366416), (12, 1774812), (13, 1638288), (16, 1331109), (18, 1183208), (24, 887406), (26, 819144), (31, 687024), (36, 591604), (39, 546096), (48, 443703), (52, 409572), (62, 343512), (72, 295802), (78, 273048), (93, 229008), (104, 204786), (117, 182032), (124, 171756), (144, 147901), (156, 136524), (186, 114504), (208, 102393), (234, 91016), (248, 85878), (279, 76336), (312, 68262), (367, 58032), (372, 57252), (403, 52848), (468, 45508), (496, 42939), (558, 38168), (624, 34131), (734, 29016), (744, 28626), (806, 26424), (936, 22754), (1101, 19344), (1116, 19084), (1209, 17616), (1468, 14508), (1488, 14313), (1612, 13212), (1872, 11377), (2202, 9672), (2232, 9542), (2418, 8808), (2936, 7254), (3224, 6606), (3303, 6448), (3627, 5872), (4404, 4836), (4464, 4771)]