20702988

素因数分解:

$2^2\times 3^2\times {\mathrm{541}}^1\times {\mathrm{1063}}^1$

素因数の和:1614

約数の個数: 36

約数和(自身を含む): 52478608

約数和(自身を除く): 31775620

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 541, 1063, 1082, 1623, 2126, 2164, 3189, 3246, 4252, 4869, 6378, 6492, 9567, 9738, 12756, 19134, 19476, 38268, 575083, 1150166, 1725249, 2300332, 3450498, 5175747, 6900996, 10351494, 20702988]

約数ペア:

[(1, 20702988), (2, 10351494), (3, 6900996), (4, 5175747), (6, 3450498), (9, 2300332), (12, 1725249), (18, 1150166), (36, 575083), (541, 38268), (1063, 19476), (1082, 19134), (1623, 12756), (2126, 9738), (2164, 9567), (3189, 6492), (3246, 6378), (4252, 4869)]