20161788807

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{12157}}^1$

素因数の和:12487

約数の個数: 32

約数和(自身を含む): 28148979712

約数和(自身を除く): 7987190905

約数列:

[1, 3, 37, 67, 111, 201, 223, 669, 2479, 7437, 8251, 12157, 14941, 24753, 36471, 44823, 449809, 552817, 814519, 1349427, 1658451, 2443557, 2711011, 8133033, 30137203, 90411609, 100307407, 181637737, 300922221, 544913211, 6720596269, 20161788807]

約数ペア:

[(1, 20161788807), (3, 6720596269), (37, 544913211), (67, 300922221), (111, 181637737), (201, 100307407), (223, 90411609), (669, 30137203), (2479, 8133033), (7437, 2711011), (8251, 2443557), (12157, 1658451), (14941, 1349427), (24753, 814519), (36471, 552817), (44823, 449809)]