12216988

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 25527040

約数和(自身を除く): 13310052

約数列:

[1, 2, 4, 7, 14, 28, 43, 73, 86, 139, 146, 172, 278, 292, 301, 511, 556, 602, 973, 1022, 1204, 1946, 2044, 3139, 3892, 5977, 6278, 10147, 11954, 12556, 20294, 21973, 23908, 40588, 41839, 43946, 71029, 83678, 87892, 142058, 167356, 284116, 436321, 872642, 1745284, 3054247, 6108494, 12216988]

約数ペア:

[(1, 12216988), (2, 6108494), (4, 3054247), (7, 1745284), (14, 872642), (28, 436321), (43, 284116), (73, 167356), (86, 142058), (139, 87892), (146, 83678), (172, 71029), (278, 43946), (292, 41839), (301, 40588), (511, 23908), (556, 21973), (602, 20294), (973, 12556), (1022, 11954), (1204, 10147), (1946, 6278), (2044, 5977), (3139, 3892)]