19810077

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20071}}^1$

素因数の和:20128

約数の個数: 16

約数和(自身を含む): 30830592

約数和(自身を除く): 11020515

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 20071, 60213, 140497, 421491, 943337, 2830011, 6603359, 19810077]

約数ペア:

[(1, 19810077), (3, 6603359), (7, 2830011), (21, 943337), (47, 421491), (141, 140497), (329, 60213), (987, 20071)]