21064515

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{19237}}^1$

素因数の和:19318

約数の個数: 16

約数和(自身を含む): 34166688

約数和(自身を除く): 13102173

約数列:

[1, 3, 5, 15, 73, 219, 365, 1095, 19237, 57711, 96185, 288555, 1404301, 4212903, 7021505, 21064515]

約数ペア:

[(1, 21064515), (3, 7021505), (5, 4212903), (15, 1404301), (73, 288555), (219, 96185), (365, 57711), (1095, 19237)]