21337980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355633}}^1$

素因数の和:355645

約数の個数: 24

約数和(自身を含む): 59746512

約数和(自身を除く): 38408532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355633, 711266, 1066899, 1422532, 1778165, 2133798, 3556330, 4267596, 5334495, 7112660, 10668990, 21337980]

約数ペア:

[(1, 21337980), (2, 10668990), (3, 7112660), (4, 5334495), (5, 4267596), (6, 3556330), (10, 2133798), (12, 1778165), (15, 1422532), (20, 1066899), (30, 711266), (60, 355633)]