20700771

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 34234368

約数和(自身を除く): 13533597

約数列:

[1, 3, 7, 13, 21, 39, 91, 191, 273, 397, 573, 1191, 1337, 2483, 2779, 4011, 5161, 7449, 8337, 15483, 17381, 36127, 52143, 75827, 108381, 227481, 530789, 985751, 1592367, 2957253, 6900257, 20700771]

約数ペア:

[(1, 20700771), (3, 6900257), (7, 2957253), (13, 1592367), (21, 985751), (39, 530789), (91, 227481), (191, 108381), (273, 75827), (397, 52143), (573, 36127), (1191, 17381), (1337, 15483), (2483, 8337), (2779, 7449), (4011, 5161)]