20992286

素因数分解:

$2^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 16332514

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 343, 431, 497, 686, 862, 994, 3017, 3479, 6034, 6958, 21119, 24353, 30601, 42238, 48706, 61202, 147833, 214207, 295666, 428414, 1499449, 2998898, 10496143, 20992286]

約数ペア:

[(1, 20992286), (2, 10496143), (7, 2998898), (14, 1499449), (49, 428414), (71, 295666), (98, 214207), (142, 147833), (343, 61202), (431, 48706), (497, 42238), (686, 30601), (862, 24353), (994, 21119), (3017, 6958), (3479, 6034)]