21820353

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{4003}}^1$

素因数の和:4108

約数の個数: 16

約数和(自身を含む): 30750720

約数和(自身を除く): 8930367

約数列:

[1, 3, 23, 69, 79, 237, 1817, 4003, 5451, 12009, 92069, 276207, 316237, 948711, 7273451, 21820353]

約数ペア:

[(1, 21820353), (3, 7273451), (23, 948711), (69, 316237), (79, 276207), (237, 92069), (1817, 12009), (4003, 5451)]