20802495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2957}}^1$

素因数の和:3039

約数の個数: 32

約数和(自身を含む): 38619648

約数和(自身を除く): 17817153

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 2957, 7035, 8871, 14785, 20699, 44355, 62097, 103495, 198119, 310485, 594357, 990595, 1386833, 2971785, 4160499, 6934165, 20802495]

約数ペア:

[(1, 20802495), (3, 6934165), (5, 4160499), (7, 2971785), (15, 1386833), (21, 990595), (35, 594357), (67, 310485), (105, 198119), (201, 103495), (335, 62097), (469, 44355), (1005, 20699), (1407, 14785), (2345, 8871), (2957, 7035)]