20841534

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{659}}^1$

素因数の和:925

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 31050306

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 251, 502, 659, 753, 1318, 1506, 1757, 1977, 2259, 3514, 3954, 4518, 4613, 5271, 5931, 9226, 10542, 11862, 13839, 15813, 27678, 31626, 41517, 83034, 165409, 330818, 496227, 992454, 1157863, 1488681, 2315726, 2977362, 3473589, 6947178, 10420767, 20841534]

約数ペア:

[(1, 20841534), (2, 10420767), (3, 6947178), (6, 3473589), (7, 2977362), (9, 2315726), (14, 1488681), (18, 1157863), (21, 992454), (42, 496227), (63, 330818), (126, 165409), (251, 83034), (502, 41517), (659, 31626), (753, 27678), (1318, 15813), (1506, 13839), (1757, 11862), (1977, 10542), (2259, 9226), (3514, 5931), (3954, 5271), (4518, 4613)]