21241696

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 55157760

約数和(自身を除く): 33916064

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 31, 32, 38, 46, 49, 56, 62, 76, 92, 98, 112, 124, 133, 152, 161, 184, 196, 217, 224, 248, 266, 304, 322, 368, 392, 434, 437, 496, 532, 589, 608, 644, 713, 736, 784, 868, 874, 931, 992, 1064, 1127, 1178, 1288, 1426, 1519, 1568, 1736, 1748, 1862, 2128, 2254, 2356, 2576, 2852, 3038, 3059, 3472, 3496, 3724, 4123, 4256, 4508, 4712, 4991, 5152, 5704, 6076, 6118, 6944, 6992, 7448, 8246, 9016, 9424, 9982, 11408, 12152, 12236, 13547, 13984, 14896, 16492, 18032, 18848, 19964, 21413, 22816, 24304, 24472, 27094, 28861, 29792, 32984, 34937, 36064, 39928, 42826, 48608, 48944, 54188, 57722, 65968, 69874, 79856, 85652, 94829, 97888, 108376, 115444, 131936, 139748, 159712, 171304, 189658, 216752, 230888, 279496, 342608, 379316, 433504, 461776, 558992, 663803, 685216, 758632, 923552, 1117984, 1327606, 1517264, 2655212, 3034528, 5310424, 10620848, 21241696]

約数ペア:

[(1, 21241696), (2, 10620848), (4, 5310424), (7, 3034528), (8, 2655212), (14, 1517264), (16, 1327606), (19, 1117984), (23, 923552), (28, 758632), (31, 685216), (32, 663803), (38, 558992), (46, 461776), (49, 433504), (56, 379316), (62, 342608), (76, 279496), (92, 230888), (98, 216752), (112, 189658), (124, 171304), (133, 159712), (152, 139748), (161, 131936), (184, 115444), (196, 108376), (217, 97888), (224, 94829), (248, 85652), (266, 79856), (304, 69874), (322, 65968), (368, 57722), (392, 54188), (434, 48944), (437, 48608), (496, 42826), (532, 39928), (589, 36064), (608, 34937), (644, 32984), (713, 29792), (736, 28861), (784, 27094), (868, 24472), (874, 24304), (931, 22816), (992, 21413), (1064, 19964), (1127, 18848), (1178, 18032), (1288, 16492), (1426, 14896), (1519, 13984), (1568, 13547), (1736, 12236), (1748, 12152), (1862, 11408), (2128, 9982), (2254, 9424), (2356, 9016), (2576, 8246), (2852, 7448), (3038, 6992), (3059, 6944), (3472, 6118), (3496, 6076), (3724, 5704), (4123, 5152), (4256, 4991), (4508, 4712)]