21828268

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 48077568

約数和(自身を除く): 26249300

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 131, 154, 262, 308, 524, 541, 917, 1082, 1441, 1834, 2164, 2882, 3668, 3787, 5764, 5951, 7574, 10087, 11902, 15148, 20174, 23804, 40348, 41657, 70871, 83314, 141742, 166628, 283484, 496097, 779581, 992194, 1559162, 1984388, 3118324, 5457067, 10914134, 21828268]

約数ペア:

[(1, 21828268), (2, 10914134), (4, 5457067), (7, 3118324), (11, 1984388), (14, 1559162), (22, 992194), (28, 779581), (44, 496097), (77, 283484), (131, 166628), (154, 141742), (262, 83314), (308, 70871), (524, 41657), (541, 40348), (917, 23804), (1082, 20174), (1441, 15148), (1834, 11902), (2164, 10087), (2882, 7574), (3668, 5951), (3787, 5764)]