21385538115

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61987067}}^1$

素因数の和:61987098

約数の個数: 16

約数和(自身を含む): 35704551168

約数和(自身を除く): 14319013053

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 61987067, 185961201, 309935335, 929806005, 1425702541, 4277107623, 7128512705, 21385538115]

約数ペア:

[(1, 21385538115), (3, 7128512705), (5, 4277107623), (15, 1425702541), (23, 929806005), (69, 309935335), (115, 185961201), (345, 61987067)]