20047239

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{571}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 29981952

約数和(自身を除く): 9934713

約数列:

[1, 3, 9, 47, 83, 141, 249, 423, 571, 747, 1713, 3901, 5139, 11703, 26837, 35109, 47393, 80511, 142179, 241533, 426537, 2227471, 6682413, 20047239]

約数ペア:

[(1, 20047239), (3, 6682413), (9, 2227471), (47, 426537), (83, 241533), (141, 142179), (249, 80511), (423, 47393), (571, 35109), (747, 26837), (1713, 11703), (3901, 5139)]