31274817

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{761}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 50718720

約数和(自身を除く): 19443903

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 399, 721, 761, 1957, 2163, 2283, 5327, 5871, 13699, 14459, 15981, 41097, 43377, 78383, 101213, 235149, 303639, 548681, 1489277, 1646043, 4467831, 10424939, 31274817]

約数ペア:

[(1, 31274817), (3, 10424939), (7, 4467831), (19, 1646043), (21, 1489277), (57, 548681), (103, 303639), (133, 235149), (309, 101213), (399, 78383), (721, 43377), (761, 41097), (1957, 15981), (2163, 14459), (2283, 13699), (5327, 5871)]