21545818

素因数分解:

$2^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{3673}}^1$

素因数の和:4101

約数の個数: 16

約数和(自身を含む): 37033920

約数和(自身を除く): 15488102

約数列:

[1, 2, 7, 14, 419, 838, 2933, 3673, 5866, 7346, 25711, 51422, 1538987, 3077974, 10772909, 21545818]

約数ペア:

[(1, 21545818), (2, 10772909), (7, 3077974), (14, 1538987), (419, 51422), (838, 25711), (2933, 7346), (3673, 5866)]