20904078

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{947}}^1$

素因数の和:1248

約数の個数: 32

約数和(自身を含む): 45230976

約数和(自身を除く): 24326898

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 283, 566, 849, 947, 1698, 1894, 2841, 3679, 5682, 7358, 11037, 12311, 22074, 24622, 36933, 73866, 268001, 536002, 804003, 1608006, 3484013, 6968026, 10452039, 20904078]

約数ペア:

[(1, 20904078), (2, 10452039), (3, 6968026), (6, 3484013), (13, 1608006), (26, 804003), (39, 536002), (78, 268001), (283, 73866), (566, 36933), (849, 24622), (947, 22074), (1698, 12311), (1894, 11037), (2841, 7358), (3679, 5682)]