20512397577

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20782571}}^1$

素因数の和:20782628

約数の個数: 16

約数和(自身を含む): 31922030592

約数和(自身を除く): 11409633015

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 20782571, 62347713, 145477997, 436433991, 976780837, 2930342511, 6837465859, 20512397577]

約数ペア:

[(1, 20512397577), (3, 6837465859), (7, 2930342511), (21, 976780837), (47, 436433991), (141, 145477997), (329, 62347713), (987, 20782571)]