291258393

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 407442816

約数和(自身を除く): 116184423

約数列:

[1, 3, 43, 73, 129, 157, 197, 219, 471, 591, 3139, 6751, 8471, 9417, 11461, 14381, 20253, 25413, 30929, 34383, 43143, 92787, 492823, 618383, 1329947, 1478469, 1855149, 2257817, 3989841, 6773451, 97086131, 291258393]

約数ペア:

[(1, 291258393), (3, 97086131), (43, 6773451), (73, 3989841), (129, 2257817), (157, 1855149), (197, 1478469), (219, 1329947), (471, 618383), (591, 492823), (3139, 92787), (6751, 43143), (8471, 34383), (9417, 30929), (11461, 25413), (14381, 20253)]