21979884

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{647}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 54432000

約数和(自身を除く): 32452116

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 149, 228, 298, 447, 596, 647, 894, 1294, 1788, 1941, 2588, 2831, 3882, 5662, 7764, 8493, 11324, 12293, 16986, 24586, 33972, 36879, 49172, 73758, 96403, 147516, 192806, 289209, 385612, 578418, 1156836, 1831657, 3663314, 5494971, 7326628, 10989942, 21979884]

約数ペア:

[(1, 21979884), (2, 10989942), (3, 7326628), (4, 5494971), (6, 3663314), (12, 1831657), (19, 1156836), (38, 578418), (57, 385612), (76, 289209), (114, 192806), (149, 147516), (228, 96403), (298, 73758), (447, 49172), (596, 36879), (647, 33972), (894, 24586), (1294, 16986), (1788, 12293), (1941, 11324), (2588, 8493), (2831, 7764), (3882, 5662)]