20919735

素因数分解:

$3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1867}}^1$

素因数の和:1964

約数の個数: 32

約数和(自身を含む): 37658880

約数和(自身を除く): 16739145

約数列:

[1, 3, 5, 9, 15, 27, 45, 83, 135, 249, 415, 747, 1245, 1867, 2241, 3735, 5601, 9335, 11205, 16803, 28005, 50409, 84015, 154961, 252045, 464883, 774805, 1394649, 2324415, 4183947, 6973245, 20919735]

約数ペア:

[(1, 20919735), (3, 6973245), (5, 4183947), (9, 2324415), (15, 1394649), (27, 774805), (45, 464883), (83, 252045), (135, 154961), (249, 84015), (415, 50409), (747, 28005), (1245, 16803), (1867, 11205), (2241, 9335), (3735, 5601)]