21213054

素因数分解:

$2^1\times 3^2\times {\mathrm{263}}^1\times {\mathrm{4481}}^1$

素因数の和:4752

約数の個数: 24

約数和(自身を含む): 46146672

約数和(自身を除く): 24933618

約数列:

[1, 2, 3, 6, 9, 18, 263, 526, 789, 1578, 2367, 4481, 4734, 8962, 13443, 26886, 40329, 80658, 1178503, 2357006, 3535509, 7071018, 10606527, 21213054]

約数ペア:

[(1, 21213054), (2, 10606527), (3, 7071018), (6, 3535509), (9, 2357006), (18, 1178503), (263, 80658), (526, 40329), (789, 26886), (1578, 13443), (2367, 8962), (4481, 4734)]