31491117

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 55031808

約数和(自身を除く): 23540691

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 103, 161, 207, 211, 309, 483, 633, 721, 927, 1449, 1477, 1899, 2163, 2369, 4431, 4853, 6489, 7107, 13293, 14559, 16583, 21321, 21733, 33971, 43677, 49749, 65199, 101913, 149247, 152131, 195597, 305739, 456393, 499859, 1369179, 1499577, 3499013, 4498731, 10497039, 31491117]

約数ペア:

[(1, 31491117), (3, 10497039), (7, 4498731), (9, 3499013), (21, 1499577), (23, 1369179), (63, 499859), (69, 456393), (103, 305739), (161, 195597), (207, 152131), (211, 149247), (309, 101913), (483, 65199), (633, 49749), (721, 43677), (927, 33971), (1449, 21733), (1477, 21321), (1899, 16583), (2163, 14559), (2369, 13293), (4431, 7107), (4853, 6489)]