19801545

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18593}}^1$

素因数の和:18672

約数の個数: 16

約数和(自身を含む): 32130432

約数和(自身を除く): 12328887

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 18593, 55779, 92965, 278895, 1320103, 3960309, 6600515, 19801545]

約数ペア:

[(1, 19801545), (3, 6600515), (5, 3960309), (15, 1320103), (71, 278895), (213, 92965), (355, 55779), (1065, 18593)]