18985172013

素因数分解:

$3^3\times {\mathrm{227}}^1\times {\mathrm{431}}^1\times {\mathrm{7187}}^1$

素因数の和:7854

約数の個数: 32

約数和(自身を含む): 28319569920

約数和(自身を除く): 9334397907

約数列:

[1, 3, 9, 27, 227, 431, 681, 1293, 2043, 3879, 6129, 7187, 11637, 21561, 64683, 97837, 194049, 293511, 880533, 1631449, 2641599, 3097597, 4894347, 9292791, 14683041, 27878373, 44049123, 83635119, 703154519, 2109463557, 6328390671, 18985172013]

約数ペア:

[(1, 18985172013), (3, 6328390671), (9, 2109463557), (27, 703154519), (227, 83635119), (431, 44049123), (681, 27878373), (1293, 14683041), (2043, 9292791), (3879, 4894347), (6129, 3097597), (7187, 2641599), (11637, 1631449), (21561, 880533), (64683, 293511), (97837, 194049)]