21390822

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{17737}}^1$

素因数の和:17812

約数の個数: 24

約数和(自身を含む): 47041176

約数和(自身を除く): 25650354

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 17737, 35474, 53211, 106422, 159633, 319266, 1188379, 2376758, 3565137, 7130274, 10695411, 21390822]

約数ペア:

[(1, 21390822), (2, 10695411), (3, 7130274), (6, 3565137), (9, 2376758), (18, 1188379), (67, 319266), (134, 159633), (201, 106422), (402, 53211), (603, 35474), (1206, 17737)]