13001555

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 19243008

約数和(自身を除く): 6241453

約数列:

[1, 5, 7, 23, 31, 35, 115, 155, 161, 217, 521, 713, 805, 1085, 2605, 3565, 3647, 4991, 11983, 16151, 18235, 24955, 59915, 80755, 83881, 113057, 371473, 419405, 565285, 1857365, 2600311, 13001555]

約数ペア:

[(1, 13001555), (5, 2600311), (7, 1857365), (23, 565285), (31, 419405), (35, 371473), (115, 113057), (155, 83881), (161, 80755), (217, 59915), (521, 24955), (713, 18235), (805, 16151), (1085, 11983), (2605, 4991), (3565, 3647)]