641520003

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{56827}}^1$

素因数の和:56954

約数の個数: 16

約数和(自身を含む): 883789056

約数和(自身を除く): 242269053

約数列:

[1, 3, 53, 71, 159, 213, 3763, 11289, 56827, 170481, 3011831, 4034717, 9035493, 12104151, 213840001, 641520003]

約数ペア:

[(1, 641520003), (3, 213840001), (53, 12104151), (71, 9035493), (159, 4034717), (213, 3011831), (3763, 170481), (11289, 56827)]