21452935

素因数分解:

$5^1\times 7^4\times {\mathrm{1787}}^1$

素因数の和:1820

約数の個数: 20

約数和(自身を含む): 30049128

約数和(自身を除く): 8596193

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 1787, 2401, 8935, 12005, 12509, 62545, 87563, 437815, 612941, 3064705, 4290587, 21452935]

約数ペア:

[(1, 21452935), (5, 4290587), (7, 3064705), (35, 612941), (49, 437815), (245, 87563), (343, 62545), (1715, 12509), (1787, 12005), (2401, 8935)]