21555912

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4139}}^1$

素因数の和:4186

約数の個数: 64

約数和(自身を含む): 63590400

約数和(自身を除く): 42034488

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 84, 93, 124, 168, 186, 217, 248, 372, 434, 651, 744, 868, 1302, 1736, 2604, 4139, 5208, 8278, 12417, 16556, 24834, 28973, 33112, 49668, 57946, 86919, 99336, 115892, 128309, 173838, 231784, 256618, 347676, 384927, 513236, 695352, 769854, 898163, 1026472, 1539708, 1796326, 2694489, 3079416, 3592652, 5388978, 7185304, 10777956, 21555912]

約数ペア:

[(1, 21555912), (2, 10777956), (3, 7185304), (4, 5388978), (6, 3592652), (7, 3079416), (8, 2694489), (12, 1796326), (14, 1539708), (21, 1026472), (24, 898163), (28, 769854), (31, 695352), (42, 513236), (56, 384927), (62, 347676), (84, 256618), (93, 231784), (124, 173838), (168, 128309), (186, 115892), (217, 99336), (248, 86919), (372, 57946), (434, 49668), (651, 33112), (744, 28973), (868, 24834), (1302, 16556), (1736, 12417), (2604, 8278), (4139, 5208)]