20214649

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 6638471

約数列:

[1, 7, 13, 17, 73, 91, 119, 179, 221, 511, 949, 1241, 1253, 1547, 2327, 3043, 6643, 8687, 13067, 16133, 16289, 21301, 39559, 91469, 112931, 169871, 222139, 276913, 1189097, 1554973, 2887807, 20214649]

約数ペア:

[(1, 20214649), (7, 2887807), (13, 1554973), (17, 1189097), (73, 276913), (91, 222139), (119, 169871), (179, 112931), (221, 91469), (511, 39559), (949, 21301), (1241, 16289), (1253, 16133), (1547, 13067), (2327, 8687), (3043, 6643)]