12721672

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 24552000

約数和(自身を除く): 11830328

約数列:

[1, 2, 4, 8, 61, 122, 131, 199, 244, 262, 398, 488, 524, 796, 1048, 1592, 7991, 12139, 15982, 24278, 26069, 31964, 48556, 52138, 63928, 97112, 104276, 208552, 1590209, 3180418, 6360836, 12721672]

約数ペア:

[(1, 12721672), (2, 6360836), (4, 3180418), (8, 1590209), (61, 208552), (122, 104276), (131, 97112), (199, 63928), (244, 52138), (262, 48556), (398, 31964), (488, 26069), (524, 24278), (796, 15982), (1048, 12139), (1592, 7991)]