21003936

素因数分解:

$2^5\times 3^1\times {\mathrm{331}}^1\times {\mathrm{661}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 55385568

約数和(自身を除く): 34381632

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 331, 661, 662, 993, 1322, 1324, 1983, 1986, 2644, 2648, 3966, 3972, 5288, 5296, 7932, 7944, 10576, 10592, 15864, 15888, 21152, 31728, 31776, 63456, 218791, 437582, 656373, 875164, 1312746, 1750328, 2625492, 3500656, 5250984, 7001312, 10501968, 21003936]

約数ペア:

[(1, 21003936), (2, 10501968), (3, 7001312), (4, 5250984), (6, 3500656), (8, 2625492), (12, 1750328), (16, 1312746), (24, 875164), (32, 656373), (48, 437582), (96, 218791), (331, 63456), (661, 31776), (662, 31728), (993, 21152), (1322, 15888), (1324, 15864), (1983, 10592), (1986, 10576), (2644, 7944), (2648, 7932), (3966, 5296), (3972, 5288)]