21802287

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 33324480

約数和(自身を除く): 11522193

約数列:

[1, 3, 13, 29, 37, 39, 87, 111, 377, 481, 521, 1073, 1131, 1443, 1563, 3219, 6773, 13949, 15109, 19277, 20319, 41847, 45327, 57831, 196417, 250601, 559033, 589251, 751803, 1677099, 7267429, 21802287]

約数ペア:

[(1, 21802287), (3, 7267429), (13, 1677099), (29, 751803), (37, 589251), (39, 559033), (87, 250601), (111, 196417), (377, 57831), (481, 45327), (521, 41847), (1073, 20319), (1131, 19277), (1443, 15109), (1563, 13949), (3219, 6773)]