20569545

素因数分解:

$3^4\times 5^1\times {\mathrm{50789}}^1$

素因数の和:50806

約数の個数: 20

約数和(自身を含む): 36873540

約数和(自身を除く): 16303995

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50789, 152367, 253945, 457101, 761835, 1371303, 2285505, 4113909, 6856515, 20569545]

約数ペア:

[(1, 20569545), (3, 6856515), (5, 4113909), (9, 2285505), (15, 1371303), (27, 761835), (45, 457101), (81, 253945), (135, 152367), (405, 50789)]