19005390131

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{156677}}^1$

素因数の和:156771

約数の個数: 32

約数和(自身を含む): 24707493888

約数和(自身を除く): 5702103757

約数列:

[1, 7, 13, 31, 43, 91, 217, 301, 403, 559, 1333, 2821, 3913, 9331, 17329, 121303, 156677, 1096739, 2036801, 4856987, 6737111, 14257607, 33998909, 47159777, 63140831, 87582443, 208850441, 441985817, 613077101, 1461953087, 2715055733, 19005390131]

約数ペア:

[(1, 19005390131), (7, 2715055733), (13, 1461953087), (31, 613077101), (43, 441985817), (91, 208850441), (217, 87582443), (301, 63140831), (403, 47159777), (559, 33998909), (1333, 14257607), (2821, 6737111), (3913, 4856987), (9331, 2036801), (17329, 1096739), (121303, 156677)]