40887981

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1523}}^1$

素因数の和:1705

約数の個数: 24

約数和(自身を含む): 62605920

約数和(自身を除く): 21717939

約数列:

[1, 3, 9, 19, 57, 157, 171, 471, 1413, 1523, 2983, 4569, 8949, 13707, 26847, 28937, 86811, 239111, 260433, 717333, 2151999, 4543109, 13629327, 40887981]

約数ペア:

[(1, 40887981), (3, 13629327), (9, 4543109), (19, 2151999), (57, 717333), (157, 260433), (171, 239111), (471, 86811), (1413, 28937), (1523, 26847), (2983, 13707), (4569, 8949)]