20907045

素因数分解:

$3^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{617}}^1$

素因数の和:882

約数の個数: 32

約数和(自身を含む): 37376640

約数和(自身を除く): 16469595

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 251, 617, 753, 1255, 1851, 2259, 3085, 3765, 5553, 6777, 9255, 11295, 16659, 27765, 33885, 83295, 154867, 464601, 774335, 1393803, 2323005, 4181409, 6969015, 20907045]

約数ペア:

[(1, 20907045), (3, 6969015), (5, 4181409), (9, 2323005), (15, 1393803), (27, 774335), (45, 464601), (135, 154867), (251, 83295), (617, 33885), (753, 27765), (1255, 16659), (1851, 11295), (2259, 9255), (3085, 6777), (3765, 5553)]