20790142

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8969}}^1$

素因数の和:9051

約数の個数: 16

約数和(自身を含む): 33368400

約数和(自身を除く): 12578258

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8969, 17938, 170411, 340822, 547109, 1094218, 10395071, 20790142]

約数ペア:

[(1, 20790142), (2, 10395071), (19, 1094218), (38, 547109), (61, 340822), (122, 170411), (1159, 17938), (2318, 8969)]