21807780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{363463}}^1$

素因数の和:363475

約数の個数: 24

約数和(自身を含む): 61061952

約数和(自身を除く): 39254172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 363463, 726926, 1090389, 1453852, 1817315, 2180778, 3634630, 4361556, 5451945, 7269260, 10903890, 21807780]

約数ペア:

[(1, 21807780), (2, 10903890), (3, 7269260), (4, 5451945), (5, 4361556), (6, 3634630), (10, 2180778), (12, 1817315), (15, 1453852), (20, 1090389), (30, 726926), (60, 363463)]