21127980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352133}}^1$

素因数の和:352145

約数の個数: 24

約数和(自身を含む): 59158512

約数和(自身を除く): 38030532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352133, 704266, 1056399, 1408532, 1760665, 2112798, 3521330, 4225596, 5281995, 7042660, 10563990, 21127980]

約数ペア:

[(1, 21127980), (2, 10563990), (3, 7042660), (4, 5281995), (5, 4225596), (6, 3521330), (10, 2112798), (12, 1760665), (15, 1408532), (20, 1056399), (30, 704266), (60, 352133)]