78870021

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 114307200

約数和(自身を除く): 35437179

約数列:

[1, 3, 17, 51, 97, 107, 149, 291, 321, 447, 1649, 1819, 2533, 4947, 5457, 7599, 10379, 14453, 15943, 31137, 43359, 47829, 176443, 245701, 271031, 529329, 737103, 813093, 1546471, 4639413, 26290007, 78870021]

約数ペア:

[(1, 78870021), (3, 26290007), (17, 4639413), (51, 1546471), (97, 813093), (107, 737103), (149, 529329), (291, 271031), (321, 245701), (447, 176443), (1649, 47829), (1819, 43359), (2533, 31137), (4947, 15943), (5457, 14453), (7599, 10379)]