31141019

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 11759461

約数列:

[1, 7, 13, 19, 31, 49, 83, 91, 133, 217, 247, 403, 581, 589, 637, 931, 1079, 1519, 1577, 1729, 2573, 2821, 4067, 4123, 7553, 7657, 11039, 12103, 18011, 19747, 20501, 28861, 33449, 48887, 52871, 53599, 77273, 126077, 143507, 234143, 342209, 375193, 635531, 1004549, 1639001, 2395463, 4448717, 31141019]

約数ペア:

[(1, 31141019), (7, 4448717), (13, 2395463), (19, 1639001), (31, 1004549), (49, 635531), (83, 375193), (91, 342209), (133, 234143), (217, 143507), (247, 126077), (403, 77273), (581, 53599), (589, 52871), (637, 48887), (931, 33449), (1079, 28861), (1519, 20501), (1577, 19747), (1729, 18011), (2573, 12103), (2821, 11039), (4067, 7657), (4123, 7553)]