420304899

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{69737}}^1$

素因数の和:69795

約数の個数: 24

約数和(自身を含む): 667811088

約数和(自身を除く): 247506189

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 6027, 69737, 209211, 488159, 1464477, 2859217, 3417113, 8577651, 10251339, 20014519, 60043557, 140101633, 420304899]

約数ペア:

[(1, 420304899), (3, 140101633), (7, 60043557), (21, 20014519), (41, 10251339), (49, 8577651), (123, 3417113), (147, 2859217), (287, 1464477), (861, 488159), (2009, 209211), (6027, 69737)]