31211884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 61641216

約数和(自身を除く): 30429332

約数列:

[1, 2, 4, 11, 22, 44, 71, 97, 103, 142, 194, 206, 284, 388, 412, 781, 1067, 1133, 1562, 2134, 2266, 3124, 4268, 4532, 6887, 7313, 9991, 13774, 14626, 19982, 27548, 29252, 39964, 75757, 80443, 109901, 151514, 160886, 219802, 303028, 321772, 439604, 709361, 1418722, 2837444, 7802971, 15605942, 31211884]

約数ペア:

[(1, 31211884), (2, 15605942), (4, 7802971), (11, 2837444), (22, 1418722), (44, 709361), (71, 439604), (97, 321772), (103, 303028), (142, 219802), (194, 160886), (206, 151514), (284, 109901), (388, 80443), (412, 75757), (781, 39964), (1067, 29252), (1133, 27548), (1562, 19982), (2134, 14626), (2266, 13774), (3124, 9991), (4268, 7313), (4532, 6887)]