21540798

素因数分解:

$2^1\times 3^2\times {\mathrm{109}}^1\times {\mathrm{10979}}^1$

素因数の和:11096

約数の個数: 24

約数和(自身を含む): 47104200

約数和(自身を除く): 25563402

約数列:

[1, 2, 3, 6, 9, 18, 109, 218, 327, 654, 981, 1962, 10979, 21958, 32937, 65874, 98811, 197622, 1196711, 2393422, 3590133, 7180266, 10770399, 21540798]

約数ペア:

[(1, 21540798), (2, 10770399), (3, 7180266), (6, 3590133), (9, 2393422), (18, 1196711), (109, 197622), (218, 98811), (327, 65874), (654, 32937), (981, 21958), (1962, 10979)]