20577078

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{1789}}^1$

素因数の和:1874

約数の個数: 40

約数和(自身を含む): 46783440

約数和(自身を除く): 26206362

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1789, 1917, 3578, 3834, 5367, 5751, 10734, 11502, 16101, 32202, 48303, 96606, 127019, 144909, 254038, 289818, 381057, 762114, 1143171, 2286342, 3429513, 6859026, 10288539, 20577078]

約数ペア:

[(1, 20577078), (2, 10288539), (3, 6859026), (6, 3429513), (9, 2286342), (18, 1143171), (27, 762114), (54, 381057), (71, 289818), (81, 254038), (142, 144909), (162, 127019), (213, 96606), (426, 48303), (639, 32202), (1278, 16101), (1789, 11502), (1917, 10734), (3578, 5751), (3834, 5367)]