20967205

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 9825755

約数列:

[1, 5, 7, 17, 35, 85, 119, 131, 269, 595, 655, 917, 1345, 1883, 2227, 4573, 4585, 9415, 11135, 15589, 22865, 32011, 35239, 77945, 160055, 176195, 246673, 599063, 1233365, 2995315, 4193441, 20967205]

約数ペア:

[(1, 20967205), (5, 4193441), (7, 2995315), (17, 1233365), (35, 599063), (85, 246673), (119, 176195), (131, 160055), (269, 77945), (595, 35239), (655, 32011), (917, 22865), (1345, 15589), (1883, 11135), (2227, 9415), (4573, 4585)]