20905545

素因数分解:

$3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{5783}}^1$

素因数の和:6032

約数の個数: 16

約数和(自身を含む): 33593472

約数和(自身を除く): 12687927

約数列:

[1, 3, 5, 15, 241, 723, 1205, 3615, 5783, 17349, 28915, 86745, 1393703, 4181109, 6968515, 20905545]

約数ペア:

[(1, 20905545), (3, 6968515), (5, 4181109), (15, 1393703), (241, 86745), (723, 28915), (1205, 17349), (3615, 5783)]