20007861

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{461}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 10328907

約数列:

[1, 3, 17, 23, 37, 51, 69, 111, 391, 461, 629, 851, 1173, 1383, 1887, 2553, 7837, 10603, 14467, 17057, 23511, 31809, 43401, 51171, 180251, 289969, 392311, 540753, 869907, 1176933, 6669287, 20007861]

約数ペア:

[(1, 20007861), (3, 6669287), (17, 1176933), (23, 869907), (37, 540753), (51, 392311), (69, 289969), (111, 180251), (391, 51171), (461, 43401), (629, 31809), (851, 23511), (1173, 17057), (1383, 14467), (1887, 10603), (2553, 7837)]